value: arnasstucinskas

value:
Hi HN,
I’m Arnas, founder of Centenary Day (https://centenary.day).
*Problem*
We all know the basics - sleep better, move daily, eat whole foods—but busy calendars and decision-fatigue wreck consistency.
*It has 3 moduless*
• Routine builder
• Nutrition planner (scales to household size)
• Health organizer (schedule activities and testing)
Looking for feedback on:
1. Onboarding friction
2. Must-have integrations
3. Pricing & free-tier limits
Happy to answer anything—thanks for checking it out!

value: Show HN: Centenary Day – toolkit for healthy living (routines, meals, tracking)

author: arnasstucinskas


value: fuzzyrock

value:
Hi! This app helps you get a clear view of how you are using Claude Code. It shows stats like message counts, token usage, sessions, projects, and even estimates your API costs. One of its best features is the ability to sync your usage across devices, giving you a complete picture over different time periods. It respects your privacy by only collecting aggregated usage data. No conversation or code details are ever touched.
There has been some controversy around tracking usage and whether it might lead to price hikes or limits, but honestly, Anthropic probably already knows this data. The app is more about helping you optimise your workflow, not exposing anything sensitive. It also includes a ranking system so you can get a sense of how others are using Claude Code and maybe learn from their patterns.
I built it with a solid backend architecture to be scalable and responsive, running on a small Kubernetes cluster. The goal is to help people like us understand and improve how we work with Claude Code, all wrapped up in a simple web and CLI interface.

value: Show HN: I built an multi-devices AI usage analytics app for Claude Code

author: fuzzyrock


value: softservo

value:
Backstory: About one month ago while visiting us, my wife’s parents were in a terrible car accident. Everyone involved is alive and going to be okay. But what followed was a series of emotional, physical and logistical challenges that pushed the entire family to their limits.
For the first week we were practically glued to our phones, contacting family members, insurance companies and air ambulance services trying to fly her parents back to Australia. I found myself obsessively checking my phone for updates, sending empty messages and mindlessly scrolling feeds. I was spending up to 12 of my 16 waking hours staring at a screen, instead of being there for my wife and her parents. I was hiding on my phone.
I finally accepted I have a serious phone addiction. I tried Apple Screen Time and a few popular screen time management apps, but found the blocks were too easy to bypass, and most apps (e.g. YouTube) were as useful as they were distracting depending on the context. I didn’t necessarily want to use my phone less: it’s an incredibly useful tool, and the distractions were sometimes helpful.
What I really needed was intentional stretches of time spent away from my phone. I built touchgrass.fm as a simple way to record and incentivize those stretches of time. It’s not quite finished, but it helped me stay present during hospital visits, meals and important conversations.
I decided to share it on the off chance it helps others get some control back and be a bit more present in their day to day lives.
More backstory here: https://softservo24.substack.com/p/touchgrassfm?r=2wsmj

value: Show HN: touchgrass.fm, reclaim screen time for quality time

author: softservo


value: danielcid

value:
we have been building DNSArchive (a DNS repository) and recently launched the web metadata search.
It allows you to look for specific patterns on headers, links and other hard to search parts of sites.
For example, you can search for all sites using PHP/5.2:
https://dnsarchive.net/web-search?q=PHP/5.2
Or WordPress 5.2:
https://dnsarchive.net/web-search?q=%22Wordpress%205.2%22
And things like that. Feedback welcome!

value: Show HN: Web Metadata search. Search for headers, web apps, CMSs, and versions

author: danielcid


value: logTom

value:
It's open source as well - feel free to check it out and tell me if you like it :)
https://github.com/Werkstattl/quick-dungeon-crawler-site

value: Show HN: Created a astrojs website for my dungeon crawler game – just went live

author: logTom


value: modrena

value: Show HN: LogDog – Remote Debugging and Mocking for Mobile Apps

author: modrena


value:
Hey folks,
I'm a developer who got tired of having to rely on SaaS providers for such a simple task as monitoring an SSL certificate expiry. I had to create calendar entries just for the sake of making sure we don't forget it because of course warning emails got lost or the person responsible was on holiday..
So instead of "building yet another platform" I decide to take the un-sexy and simple route and put together a Telegram bot, called it Certimon. Thanks to Claude and Cursor I also put together a landing page for it https://certimon.com/ but I don't think you'll get any value out of it...
If you want to give it a try, just add @CertimonBot to your Telegram or visit https://t.me/certimonbot to add directly.
You can check a domain like this:
/check google.com
And get reminders like:
/remind google.com 30
It's 100% free, supports as many domains as you need and you won't need to sign up to anything or download anything (assuming you already have Telegram).
Hope someone other than me will find this useful, would love to hear your thoughts, comments and questions!
Edit: Forgot to mention, but the operational cost of this solution is around £3 per month on AWS.
-Tamas

value: Show HN: Certimon – Free Telegram bot to monitor SSL certificate expiry


value: azizuysal

value:
I built SimTool to solve a recurring pain point in iOS development: constantly navigating through Finder to inspect app containers and simulator files.
It's a terminal UI that lets you:
- Browse all iOS simulators and their installed apps
- Navigate app containers with syntax-highlighted file viewing
- Preview images, SQLite databases, plists, and archives in terminal
- Search/filter simulators and apps
- Boot simulators and open files in Finder with keyboard shortcuts
Built with Go and Bubble Tea. Supports 60+ syntax highlighting themes and works across different terminals.
Installation: brew install azizuysal/simtool/simtool
GitHub: https://github.com/azizuysal/simtool
Demo GIF: https://github.com/azizuysal/simtool/blob/main/demo.gif
Would appreciate any feedback, especially from iOS developers who deal with simulators daily.

value: Show HN: SimTool – Terminal UI for iOS Simulator Management

author: azizuysal


value: accurrent

value: Just a fun hack I did while bored over the weekend. My wife was busy shopping, it got me thinking that can VLMs solve the indoor location problem in a mall? Can I just show a VLM a map and an image and have it doa good enough job locating me? I hacked this P.O.C and it seems to work.

value: Show HN: From Photos to Positions: Prototyping VLM-Based Indoor Maps

author: accurrent


value: jcusch

value:
Hey All,
My wife loves word games like Wordle and Connections, she had an idea for a similar game inspired by Hangman and asked me to build it.
Here it is, flaws and all. Any feedback is very welcome.

value: Show HN: Quotatious – A Wordle and hangman inspired game

author: jcusch


value: Show HN: I Asked ChatGPT to Rebuild My Canvas Radial Menu in SVG


value: jarbcopilot

value: Show HN: D++lang – A new systems programming language with Python-like syntax

author: jarbcopilot


value: vinhnx

value: Show HN: I Built a Minimal AI Chat app with Local Storage and Advanced Research

author: vinhnx


value: Ibrasama

value:
Hi HN
I'm working on MangaCraft, a no-code SaaS tool designed to help Webtoon creators improve their visibility, engagement, and publishing strategy.
The idea is to provide creators (Canvas, Tapas, GlobalComix) with:
An automated audit of their series (scraped data like views, likes, frequency…)
AI-powered recommendations (titles, hashtags, SEO improvements)
A visual dashboard with performance metrics
A downloadable PDF report with improvement suggestions
Gamified progress system to keep creators consistent
Built with:
Browse.ai (scraping)
OpenAI (audit generation)
Google Sheets backend (for now)
Zapier (automation)
Discord webhook (optional notifications)
The project is live as a beta and I’m looking for early feedback and creators willing to test it.
Here’s the landing page: https://manga-craft-boost.lovable.app/
You can leave your email to get notified when the beta opens.
---
Why I built it:
I'm passionate about Webtoons and noticed that creators often lack strategic tools to grow. MangaCraft wants to be their silent assistant — offering feedback, improving discoverability, and helping them succeed.

value: Show HN: MangaCraft – SaaS that audits Webtoon series using AI (SEO)

author: Ibrasama


value: zxcholmes

value:
Built a 24/7 news monitoring service that sends instant email alerts when
   your keywords appear in breaking news worldwide.

  Key features:
  • Real-time alerts from global news sources
  • Custom keyword tracking
  • Smart filtering to prioritize important news
  • Perfect for investors, traders, and business professionals

value: Show HN: News Alert - Real-time global news monitoring with keyword alerts

author: zxcholmes


value: eddelage

value:
I recently went through the house hunting process and was frustrated by how hard it was to stay organized while scrolling Zillow. It was too easy to forget what I liked, what I didn’t, and how different listings stacked up.
So a friend and I built Listing Vibes — a lightweight iOS app that runs on top of Zillow and lets you:
 • Rate listings with a simple 5-icon system
 • Drop private notes while you scroll
 • Rank your favorites in one place to stay organized
It’s still early (MVP stage), but it’s live on the App Store now. We’d love feedback from anyone — especially if you’re actively in the market or have searched recently. Any thoughts on features, UX, or use cases we’re missing?
Thanks for checking it out!

value: Show HN: Listing Vibes – Rate and rank homes while scrolling Zillow

author: eddelage


value: bcbernstein

value: I made this to focus on places that are genuinely good to work for the day, not just co-working spaces or random coffee shops. I'm trying to make it simple, fast, and containing the same good data that a place like Hacker News does.<p>I'd love any feedback on how to make it helpful for you. Thanks.

value: Show HN: Spots – Map of good places to work remotely for the day

author: bcbernstein


value: vivaankumar

value:
This is my attempt at making a fun little tool for the "Looksmaxxing" trend.
Elevate your look, confidence, and game with Mogg.  Use code MAXX for 50% off! Get facial ratings, posture coaching, and practice rizz with AI—all toolkit. Thousands are transforming. Ready to upgrade? Your toolkit awaits. #LevelUp
What's Inside Mogg?
- Facial Rating & Analysis
Get a personalized assessment with detailed scoring and insights to improve your appearance.
- Height Coach
Estimate your height potential and posture optimization tips that enhance your overall presence.
- Rizz Coach
Practice conversation skills and get feedback in real-time. Test your charm before you take it to the real world.

value: Show HN: Analyse your face, Practise your rizz, and Estimate your Height

author: vivaankumar


value: reincoder

value: Show HN: IPguessr – Geolocate Random IPs

author: reincoder


value:
Tired of SEO tools that ask for your email, limit your searches, or lock CSV exports behind a paywall?
Same here — so I built a 100% free SEO Keyword Generator with:
Unlimited keyword searches
 One-click CSV export
 AI-generated keyword suggestions with variations
 No login, no signup, no nonsense
 Works instantly in-browser
It’s built specifically for bloggers, marketers, affiliate SEOs, and creators who need fast keyword data without the friction.
Perfect for:
Discovering low-competition content ideas
Generating blog topics
YouTube/Podcast SEO
Programmatic SEO inputs

value: Show HN: Free Unlimited SEO Keyword Generator with CSV Export (No Login Needed)


value: thiagomg

value: Show HN: Lush extends Lua with string interpolation and other useful features

author: thiagomg


value: computerex

value:
Bronie was bootstrapped using bronie itself, it's a self generating AI code editor. It cost roughly $40 USD to generate over the weekend. I did not write any of the code myself.
It supports OpenRouter, and any LLM provider with an OpenAI API compliant endpoint (most of them).
It was written to be extended as a good base. I hope you'll try it, fork it, extend/modify it for your own use.
I wanted to explore to see how difficult it is to make a useful code editor amid the Cursor Pricing Crisis. I think I reached the conclusion that the platform isn't very important, models are the sauce.

value: Show HN: Build your own AI code editor

author: computerex

title: Show HN: Build your own AI code editor


value: msgodel

value:
BingeBlock lets you set daily time limits for addictive web sites so you can keep using them without them taking over your life. I've recently learned iOS actually has this built in to "screen time."
This was supposed to be a closed beta but I had to resubmit a couple times and forgot to uncheck "immediately publish" this round so I guess I'm doing a public beta. It still has a couple rough bits (no countdown when the timer is about to expire etc) but it's personally helped me a lot, I'm sure there are plenty of other people here who could use.
I'd love to hear feedback.

value: Show HN: BingeBlock: a Chrome extension similar to ScreenTime

author: msgodel


value: seuros

value: BreakerMachines is a production-ready circuit breaker for Ruby/Rails with built-in async/fiber support, fallback chains, and rich monitoring. Unlike existing gems, it handles modern Ruby's fiber scheduler and avoids dangerous thread timeouts.

value: Show HN: BreakerMachines – Modern Circuit Breaker for Rails with Async Support

author: seuros


value: jascination

value:
Hey HN! James from DLN here.
DeepLinkNow (DLN) is a deferred deep linking SaaS. For those who don't know, "deep linking" is when a URL is used to open an app to a specific page; "deferred deep linking" is used when you send a user a link, they click it, they don't have your app installed, they install it, and you "defer" the place they intended to go and launch it for them.
An example: I share a link a post in my cool new social app. You click the link. You don't have the app installed. If/when you install the app, DLN tells the app the link you were looking for and the app can route you where it needs to.
Why I built DLN: I wrote a blog post about it https://deeplinknow.com/blog/why-I-built-this .
Long story short, the leading platforms for deep linking are AD PLATFORMS. Their main value is MMP/PPC ad performance marketing, and they nefariously track users all over the internet to capture as much information about them as possible.
I track nothing. I don't care what ad your users clicked, I delete fingerprints as soon as they're accessed or expired. You can BYO analytics tools (you already use them anyway!) and use them. I'm just here to send your users to the right place.
I've got some video guides here to give you an idea of how it all works: https://deeplinknow.com/docs/guides
Anyway, that's my shpiel. I'm coming out of beta now and am ready for public users. Would love for you to check it out, and if you're a business who uses deferred deep linking - I want your business! I'm actively building features that my users request and want to make the world of cross-platform tracking both privacy and developer friendly.

value: Show HN: DeepLinkNow, a privacy-first deferred deep linking SaaS for devs

author: jascination


value: ddoemonn

value:
Every time I sat down to work, I’d open a to-do app, a notes app, a timer, a doc, and then wonder where the day went.
So I built TidyMind — a small, clean productivity space with tasks, a focus timer, and reflection built-in.
Waitlist here if you’re into that kind of thing
Would love feedback. Still building this alone, so I’m listening.

value: Show HN: TidyMind – I built a quiet productivity space to stop overthinking

author: ddoemonn


value:
I'm making a second version for the new C³ programming language.
Added modifiers. These are modules that add additional functionality to the main module.
I can give you an example of another implementation of a string for C in the chars folder. In the first version, there were many variable fields in the chars structure. This turns out to make the module's functions complex. Then I remembered the basic principle of the new programming language C³ is maximum simplicity. So I left only one field in the chars structure, which is a pointer to char. In this way, the structure can be directly converted to a char pointer. The structure has functions to support working with arrays.
You may wonder where the other fields are, such as buffer size and write and read positions? I decided to make them in the form of separate structures, iter, and iter_read. These are modificators. They are added as header files and add functions. You can use many iterators for a single chars structure.
These three structures are combined in a common char_array control structure, which is responsible for automatic control of pointers. It has one pointer each to chars, iter, iter_read.
Iterator modules are modifiers. They add independent fields to the main structure, and additional functions for working with them. Thus, they adopt the prefix of the main structure. The names are chars, chars_iter for writing, chars_iter_read for reading. For now, nesting is one. I plan to increase the number of modifiers.
I'm currently making a parser for the C programming language, and this architecture allows you to use a lot of reading iterators. Thus, part of the structure is passed by reference and by value.
When I pass some structs by the value of *p, then inside the function I get my own instance of the struct that I can modify. For example, for parsing. And if successful, I can apply the changes to the original structure.
In this project, I'm interested in new architectural possibilities, so I can change structures frequently for improvements.
https://gitlab.com/9o1d/c3v2
Version 1 is available at https://azhibaev.com/c3.zip
Stay tuned !

value: Show HN: The C³ Programming Language version 2


value: Ibrasama

value:
Hi HN
I’ve been building *MangaCraft*, a lightweight AI-based tool that helps Webtoon creators improve their content strategy.
Here's what it does:
- You enter the link to your Webtoon (Canvas, Tapas, GlobalComix, etc.)
- It scrapes public data like views, likes, episodes, tags, and publishing frequency
- Then it uses OpenAI to generate:
   - Suggested hashtags
   - Title improvements
   - Engagement strategy ideas
   - SEO and publishing tips
You receive a downloadable PDF report and can follow your series' progress in a dashboard.
Built entirely using no-code + AI tools: OpenAI, Browse.AI, Google Sheets, Zapier, and more.
I'm sharing this to get early feedback before launching. Would this be useful to creators or indie publishers?
Let me know what you think. I'm solo-building from Cameroon  and want to make tools that help creators go global.
Thanks for reading!

value: Show HN: MangaCraft – AI audit tool for Webtoon creators


value:
I've been building indie SaaS products for a while now, and one thing kept bugging me:
Why are SaaS boilerplates so damn expensive — and still so incomplete?
$199 for boilerplates that don’t even include payments?
Some don’t have auth wired in properly.
Others are bloated with stuff I end up ripping out.
So instead of buying another overpriced "starter kit," I built my own:
 https://www.saasrocket.pro
It's called SaaSRocket. It’s not revolutionary — it's just actually complete:
Supabase (auth + DB)
Resend (transactional emails)
Lemon Squeezy (Stripe alt payments)
Cloudinary (blogs/media uploads)
Dashboard layout with SEO + unit tests
I priced it at $49, because boilerplates shouldn’t feel like buying a car. It’s meant for solo founders and indie hackers, especially in lower-income regions.
I’m curious — is there a reason most devs just tolerate overpriced boilerplates?
What would your ideal boilerplate look like?
What would it cost?
What’s the one feature you always end up adding manually?
Open to brutal feedback — I’m using this to build my next SaaS myself.
–
Shreyan
X: @ShreyanRants

value: Show HN: Why Are SaaS Boilerplates Still This Expensive? So I Built My Own


value:
This is a logic engine GUI where users can input structured interactions (e.g. Gravity(Earth→Object)) and visualize the logic flow as diagrams and property tables.
No AI, no solver, no learning. Just pure structure.
https://github.com/wdaserdfwrwerv/nonliengine-gui

value: Show HN: Logic Simulation GUI – No AI, Safe Public Version


value: Agundur

value: A KDE Plasma 6 callmonitor plasmoid for the AVM FRITZ!Box. Notifications about incoming calls

value: Show HN: Kfritz – A KDE Desktop call monitor

author: Agundur


value: qeden

value: Virby is a module for nix-darwin that configures a lightweight linux VM as a remote build machine for nix, allowing linux packages to be built on macOS.

value: Show HN: Virby, a vfkit-based Linux builder for Nix-Darwin

author: qeden


value: manter

value: Show HN: Ordah.com – a ranked, head-to-head poll site for making decisions

author: manter


value: Jovanthienen

value: I like to run and listen to podcasts or audiobooks at the same time, but realized that my pace was slower than usual. So I created this metronome that helps me improve my pace and keep it 180 spm. It's quite simple but effective.

value: Show HN: A metronome for running that will improve your pace

author: Jovanthienen


value: insaaniManav

value:
PromptForge: Open-source AI prompt engineering workbench with systematic evaluation
I built PromptForge after getting frustrated with the manual trial-and-error approach to prompt engineering. Most tools are just text editors, but I wanted something that brings software engineering discipline to prompt development.
Key technical features:
- AI-assisted prompt generation (stop starting from scratch)
- Systematic evaluation engine that auto-generates test suites
- Multi-model support (Claude, GPT-4, Azure OpenAI)
- Go backend with SQLite for performance and simplicity
- One-line Docker deployment
The evaluation system automatically tests for robustness, safety, factual accuracy, and creativity across different scenarios. Think unit testing but for prompts.
Currently #1 on Product Hunt today after 5+ hours, which validates that developers need better prompt engineering tools.
Open source (GPLv3): https://github.com/insaaniManav/prompt-forge
Demo: https://demo.arcade.software/bFGTYb7AuRV33Kei7ZFQ
PH URL : https://www.producthunt.com/products/promptforge-2
Would love feedback from the HN community, especially on the evaluation methodology and technical approach.

value: Show HN: Open-source AI prompt engineering workbench with systematic evaluation

author: insaaniManav


value: ddoemonn

value: Show HN: SaveBean – Understand your money. No banks, just clarity


value: harperhuang

value:
Hi everyone! I'd like to share a personal project I've been working on recently: What Games Play. It's a completely free web-based mini-games platform that requires no registration or login. My goal was simple: create a place where anyone can open their browser anytime, anywhere, find classic mini-games, and instantly unwind.
Website: https://whatgamesplay.com/
Currently, the site features 6 carefully crafted mini-games:
1、Dino Run: A tribute to the classic Chrome offline game, but now you can play it anytime! I've also added accessibility features for visually impaired users to enhance the experience.
2、Tetris: The timeless classic with modern gameplay features including 7-bag randomization and wall kicks.
3、Dynamic Tic-Tac-Toe: Beyond traditional tic-tac-toe, I've added a dynamic mode where when a player places their 7th piece, their first piece automatically disappears. This prevents draws and makes the game more challenging and strategic. Supports both AI and two-player modes, plus music and sound effects for a fresh experience.
4、Snake: Another beloved classic - see how long you can grow!
5、Maze Game: Can you find the exit? Different difficulty levels offer varying challenges, with a treasure hunt mode available.
6、Healing Bubbles: A purely relaxing and stress-relieving mini-game.
One interesting aspect of this project is that from game logic and UI/UX design to code implementation, refactoring, and internationalization, I completed the entire development process with deep AI assistance. It wasn't just a code completion tool, but more like a 24/7 pair programming partner, which greatly enhanced both development efficiency and enjoyment.
The website is fully compatible with both desktop and mobile devices, ensuring a smooth experience whether you're on a computer or phone.
This project means a lot to me, and I'm eager to hear genuine feedback from the Hacker News community. Please feel free to try it out - I welcome any suggestions, bug reports, or ideas for new games!
Thanks again!

value: Show HN: What Games Play?No Registration Required!

author: harperhuang


value: yashbhatnagar

value: Show HN: Silenttype – AI sidekick that transcribes and summarises lectures

author: yashbhatnagar


value: nullvoxpopuli

value:
After months of fragmented effort, I finally published the prototype omni-REPL for web frameworks and things that render DOM.
I'm very excited (and relieved) to have achieved this milestone.
I had to completely re-architect how this REPL worked  (a side project a started during covid)
It currently supports:

    - React

    - Svelte

    - Vue

    - Mermaid

    - Markdown (with live islands)

    - Ember

Hoping to add soon

    - Solid

    - Typescript versions of the above

    - prettier / auto-formatting

    - choosing which versions of dependencies are loaded (important for issue reproductions)

    - some performance stuff (moving compilation into a web worker instead of the main thread)

    - docs

This REPL uses CodeMirror, which (afaict), is the only fully featured editor capable of both working on mobile, and being accessible (Sorry Monaco / vscode)
It will automatically fetch any package from NPM as you import it, and the untarring does happen in a web worker.
There are still lots of quality of life things to add, but I just wanted to celebrate this personal milestone with y'all

value: Show HN: New cross framework omni-REPL

author: nullvoxpopuli

title: Show HN: New cross framework omni-REPL


value: dyoshikawa

value:
Node.js CLI tool rulesync that is for using across multiple AI coding tools(ClaudeCode, Cursor and GH Copilot etc) originally supported only files of rules and memories.
Recently, added support .ignore such .cursorignore and MCP servers like .cursor/mcp.json.
Please try it and let me know your feedback.
Thank you.

value: Show HN: Rulesync – Add support for .ignore and MCP servers

author: dyoshikawa


value: ShinMatsura

value:
I work at a consulting firm and continuously research AI tools, running a site called Best AI Tool Finder (https://bestaitoolfinder.com/).
With advancements like Vibe Coding, the number of new AI tools being released each day has exploded—so much so that following influencers on social media alone is no longer enough to keep up. That’s why I started aggregating and curating over 10,000 products from Product Hunt and other top sources worldwide, rigorously filtering only the top-rated tools using a multi-layered process of AI screening and manual review. The site now features 1,600+ in-depth trend and review articles, including 100 deeply analyzed reports on the most promising or practical tools.
What sets this site apart is its commitment to accuracy: 95% of fact-checking and copyright/hallucination filtering is automated by AI, then everything is edited and published by me personally. Unlike many popular SEO-heavy “AI tool roundups” plagued by misinformation, I uphold strict quality standards and will promptly and freely correct any errors if pointed out.
Both the AI community and end users need reliable information they can trust. My ongoing goal is to provide a critical, independent guide everyone can use to navigate and compare the ever-growing AI landscape—especially as AI-driven search becomes the norm.
If you spot a top-rated Product Hunt (or other) tool that's missing, or notice anything inaccurate—please let me know and I’ll fix it for free.
Thanks!

value: Show HN: Best AI Tool Finder

author: ShinMatsura

title: Show HN: Best AI Tool Finder


value: projectvitalis

value:
We’ve developed a new open model for measuring system health using thermodynamics and information theory. It’s called QIH (Quantified Inference of Health), and it defines health not as a static state, but as the adaptive capacity to export entropy.
This applies to biological systems (sleep, disease), ecosystems (Amazon collapse), markets (COVID crash), and even AI.
It’s testable, cross-domain, and designed to bridge theory with real-world simulation. We’d love feedback from systems thinkers, biologists, physicists, and curious generalists.
We’re releasing this under open protocol and will iterate based on feedback. AMA!

value: Show HN: A Thermodynamic Model of System Health (Entropy and Adaptability)

author: projectvitalis


value: Show HN: Viben Ring – mini elden ring in Three.js


value: bekoeppel

value:
I built Chat Capsule because I wanted to export my ChatGPT conversations in plain-text Markdown, so I can import them to Notion, or take the history over to Claude in the future.
It's as simple as that:

  * Get your data export from ChatGPT
  * Drag-and-drop the ZIP (or just conversations.json) you download from ChatGPT
  * Parsing happens client-side only, so none of your confidential conversations leave your machine
  * Download each thread individually, or all of them as a ZIP file

First 100 users get it for free with the code SUMMERDAY100.

value: Show HN: Chat Capsule – Convert ChatGPT Chats to Markdown (For Notion, etc.)

author: bekoeppel


value:
I built a scraper tool that provides free and unlimited access to picwish.com<p>⬛ Features
- photo enhancement
- background removal
- OCR
- image expansion
- image translation<p>Please refer the readme.md for usage.

value: Show HN: Free Unlimited Photo Enhancer, Background Remover,etc.(Picwish Scraper)


value: marcinczubala

value:
Hi HN,
I run a small ecommerce shop and, until recently, spent way too many evenings copy-pasting supplier invoices into Excel so my books stayed clean and my expense tracking was granular. It finally hit me that I’d rather invest that time in code than in Ctrl-C/Ctrl-V, so I built ParsePoint.app.
Why I built it
 • Manual invoice entry was swallowing 4 hours every month.
 • Accounting software APIs felt heavyweight for my use-case; I really just wanted clean rows in a spreadsheet.
 • I love tinkering with AI models and needed an excuse to spin one up in production.
What it does
 1. Upload a PDF (or forward an email).
 2. ParsePoint’s AI OCR extracts line-items, amounts, tax, dates, etc.
 3. Download a ready-to-pivot Excel/CSV file or hit the API to drop the data wherever you like.
Under the hood
 • Frontend: React
 • API: .NET 8, PostgreSQL
 • AI layer: an open-source VLLM model fine-tuned for document layouts
Outcome so far
 • My own workload: from 4 hours/month to less than 10 minutes.
 • Early beta testers (other solo-store owners) report similar time savings and fewer bookkeeping errors.
 • The pay-as-you-go credit system means no subscriptions or lock-ins—use it only when you need it.
I’d love feedback on the tech approach, pricing model, or anything that looks off. All comments welcome, and I’m here to answer every question.
Thanks for reading!
Marcin – maker of ParsePoint.app

value: Show HN: ParsePoint – AI OCR that pipes any invoice straight into Excel

author: marcinczubala


value: Looksmaxxer

value:
Want to analyse or rate your facial attractiveness?
Ever wanted to get better at texting and conversing with the opposite sex?
Or did you want to estimate your height potential cause your short?
We got you covered. Try Mogg
https://mogg-brown.vercel.app/

value: SHOW HN: The Looksmaxxing Tool (self improvement)

author: Looksmaxxer


value: Looking for some reviews.

value: Show HN: JLSP – A Java Expression Parser

story_text: Looking for some reviews.


value: alonagmon

value:
It all started with a conversation among friends about limitations in current multi-agent orchestration frameworks. We faced issues like limited control over agent memory and state, complicated persistence, scaling problems, and lack of type safety in Python-based tools. These challenges inspired us to try something different.
The result was GraphFlow, a Rust-based lean framework for orchestrating multi-agent workflows that's simple, scalable, and robust. Its key features include:
Graph-based orchestration: Easily define workflows using nodes and edges.
Lean Execution Engine: A minimal and efficient graph executor / state machine implementation.
Clear Memory Management: Direct and transparent handling of agent states.
Simple DB Schema: Easy-to-understand schema for persistence and state tracking.
High Performance: Native Rust performance with low overhead and easy scaling.
Type Safety: Rust's type system reduces runtime errors.
GraphFlow is open-source ofc and aims to solve real-world problems we've experienced firsthand.
We'd love your feedback!

value: Show HN: GraphFlow – A lightweight Rust framework for multi-agent orchestration

author: alonagmon


value: Tafting

value: Show HN: I made an app to transform any URL into engaging videos

author: Tafting


value: This project is a simple but fun demonstration of a genetic algorithm applied to image generation. It starts with a population of random images and evolves them over generations to resemble a target image. The output is an animated GIF that shows the entire evolution process.

value: Show HN: Pixel Art Generator Using Genetic Algorithm


value: nicoburniske

value: Show HN: Comically – TUI manga and comic optimizer for e-readers

author: nicoburniske


value: sankethchebbi

value: gappy on X asked for it. so here it is!

value: Show HN: Guess the Sharpe

author: sankethchebbi

story_text: gappy on X asked for it. so here it is!

title: Show HN: Guess the Sharpe


value:
An open-source, security-first LLM Gateway designed to provide a unified, secure, and observable entry point to any Large Language Model.
Docs: https://ozanunal0.github.io/Prometheus-Gateway/

value: Show HN: Open-Source GenAI API Gateway

title: Show HN: Open-Source GenAI API Gateway


value: krispycreame

value: Show HN: YouTube Shorts Blocker Chrome Extension

author: krispycreame


value: aqny

value: Show HN: Kuqu: SQL for Kubernetes Resources

author: aqny


value: omneity

value: Show HN: BorgLLM, Zero-config LangChain Client, key rotation and rate limit mgmt

author: omneity


value: nepalvibes

value:
Threw this together pretty quick because I kept seeing different takes on the new tax bill everywhere. Some sources saying it's bad for lower/middle class, others saying everyone saves money - figured I'd just build something to visualize it instead of trying to figure out who's right.
Used Cursor to help build the website and make it interactive so you can plug in your own info. Hosted using Cloudflare pages.
This definitely isn't perfect and you shouldn't use it for actual tax planning or anything serious. I'm not a tax expert, just someone who wanted to see the numbers laid out clearly.
Would love feedback on any major calculation error or better way to visualize it.

value: Show HN: Trump Tax Changes Comparison

author: nepalvibes

title: Show HN: Trump Tax Changes Comparison


value: arzykul

value:
Hi HN!
I’m Arzykul from Kyrgyzstan , and I’ve built a new kind of token: ARZY-G.
It’s not mined, not bought, and not farmed.
It’s born only from real-world usefulness, verified by AI and Chainlink Functions.
Our goal: create a fairer, purpose-driven economy — what we call Web4.
GitHub + Whitepaper:
 https://github.com/arzykul/ArzyNet
I’d love your feedback, criticism, or even questions. I'm a self-taught founder, building this from scratch.
Thank you for reading!
— Arzykul Muratov (@Arzykulm)

value: Show HN: ARZY-G – A token born from AI-verified usefulness (not mined or bought)

author: arzykul


value: ipogrjegiorejkf

value: Show HN: Microwave Kittens

author: ipogrjegiorejkf

title: Show HN: Microwave Kittens


value: explosion-s

value: Show HN: Refractive JavaScript Glass

author: explosion-s

title: Show HN: Refractive JavaScript Glass


value: aadyachinubhai

value:
A new opportunity pops up, but your resume is hopelessly out of date. You copy content from LinkedIn, dig up old projects from GitHub, and try to remember what you actually accomplished at your last job. Then comes the formatting Word, Google Docs, endless font tweaks, and still, it never looks quite right. And if you want to tailor your resume for a specific job? That’s another evening gone.
I built autoResume because I was tired of this cycle. I wanted a tool that made resume building as easy as pasting a link or dropping in a job description. With autoResume, you can:
Paste your professional links (GitHub, personal site, LinkedIn) and instantly pull in your achievements.
Edit manually when you want full control, with a clean, code-like editor.
Let AI help polish, update, and even tailor your resume to specific roles, just paste the job description.
See a beautiful, professional PDF rendered in real time, thanks to LaTeX.
Runs locally using Docker.

value: Show HN: Autoresume – OpenSource, Resume Builder and TeX Editor with AI Features

author: aadyachinubhai


value: kstonekuan

value:
Chrome now includes a native on-device LLM (Gemini Nano) starting in version 138. I've been building with it since it was in origin trials, it's powerful but the official Prompt API is still a bit awkward:
- Enforces sessions even for basic usage
- Requires user-triggered downloads
- Lacks type safety or structured error handling
So I open-sourced a small TypeScript wrapper I originally built for other projects to smooth over the rough edges:
github: https://github.com/kstonekuan/simple-chromium-ai
npm: https://www.npmjs.com/package/simple-chromium-ai
- Stateless prompt() method inspired by Anthropic's SDK
- Built-in error handling and Result-based .Safe.* variants with neverthrow
- Token usage checks
- Simple initialization that provides a helper to trigger downloads (must be triggered by user action)
It’s intentionally minimal for hacking and prototyping. If you need fine-grained control (e.g. streaming, memory control), use the native API directly:
https://developer.chrome.com/docs/ai/prompt-api
Would love to hear what people build with it or any feedback!

value: Show HN: Simple wrapper for Chrome's built-in local LLM (Gemini Nano)

author: kstonekuan


value:
Browse Anything is now live in Public Beta!
After several months of private beta testing, over 100 users and hundreds of real-world tasks performed, I’m incredibly excited to officially launch the public beta of Browse Anything!
 What is it?
 Browse Anything is an AI agent (computer use agent) that can browse the web, automate tasks, extract data, generate reports, and much more, all from a simple prompt. Think of it as your personal web assistant, powered by AI.
 It can:
Navigate websites autonomously
Scrape and structure data
Generate CSV or PDF files
Update Google Sheets or Notion
Keep a human in the loop for validation
 It's like OpenAI Operator,Google Project Mariner — but without the $200/month paywall.
 This project started from a simple curiosity 8 months ago. Since then, I’ve built it from the ground up — fully self-funded, self-hosted, and fueled by a vision of what AI can do for real-world productivity.
 Try it now and be part of the journey: browseanything.io
 Feedback is welcome — and if you're excited about the future of AI agents, feel free to share or reach out!

value: Show HN: BrowseAnything – An AI agent that automates any website task


value: Build a project that tracks supermarket prices across the EU region (for now); the aim is to aid shoppers find the best deals across supermarkets

value: Show HN: Compears – Compare Grocery prices across Supermarkets


value: ayaros

value:
https://lisagui.com/info.html
This is a web OS I wrote in vanilla JS that looks like the Apple Lisa Office System (1983-85), with other contemporaneous influences and additional improvements and features. It's currently in alpha and isn't remotely bug free. I had been holding off on posting this here until it was somewhat presentable and useful. Please note; the Lisa conforms more literally to the desktop metaphor than most modern GUIs - some of the important differences are mentioned in the readme.
This is a complete recreation of the UI in JS; it all renders to a single canvas element. It's not a CSS theme, and not an emulator ported to JS. None of the code is written by Apple. I'll be happy to elaborate more in the comments, but the short version is the entire UI is defined outside the DOM using JS objects. Thus, every interface element - menus, windows, controls, and even typefaces - was recreated from scratch. There are no font files - I wrote my own typesetting system, which supports combining multiple text styles and generates new glyph variants on the fly.
Many of the technical decisions I made were motivated by a desire to have this look the same in every browser. That's harder to do with the DOM and CSS, and why I moved as much logic as I could to JS. Also, the only part of the project outside of vanilla JS and standard web APIs is the Gulp toolkit, which I'm using as a minification/build tool. No vibe coding was used to make this!
This is based on a UI from the 80s, and won't work well on your phone. If you insist on running it that way, turn on trackpad mode in the touchscreen settings panel of the preferences app. For best results, install it as a PWA (add it to your home screen). Also there are some odd Android bugs; the native touchscreen keyboard is currently broken, and there's an issue with the cursor when dragging windows.
I realize there's not a whole lot to do within LisaGUI right now; I've got a big list of additional features and apps I'll be adding in the future.  I've been working on this project for a while, and I'm eager to hear people's feedback and answer questions about it.

value: Show HN: I wrote a "web OS" based on the Apple Lisa's UI, with 1-bit graphics

author: ayaros


value: stjernberg

value: Show HN: I made this free tool in 4 days to make your screenshots 10x better.

author: stjernberg


value: knrz

value:
I've been building AI systems for a while and kept hitting the same wall - prompt engineering felt like string concatenation hell. Every complex prompt became a maintenance nightmare of f-strings and template literals.
So I built LLML - think of it as React for prompts. Just as React is data => UI, LLML is data => prompt.
The Problem:

  # We've all written this...
  prompt = f"Role: {role}\n"
  prompt += f"Context: {json.dumps(context)}\n"
  for i, rule in enumerate(rules):
      prompt += f"{i+1}. {rule}\n"

  # The Solution:
  from zenbase_llml import llml

  # Compose prompts by composing data
  context = get_user_context()
  prompt = llml({
      "role": "Senior Engineer",
      "context": context,
      "rules": ["Never skip tests", "Always review deps"],
      "task": "Deploy the service safely"
  })

  # Output:
  <role>Senior Engineer</role>
  <context>
    ...
  </context>
  <rules>
    <rules-1>Never skip tests</rules-1>
    <rules-2>Always review deps</rules-2>
  </rules>
  <task>Deploy the service safely</task>

Why XML-like? We found LLMs parse structured formats with clear boundaries (<tag>content</tag>) more reliably than JSON or YAML. The numbered lists (<rules-1>, <rules-2>) prevent ordering confusion.
Available in Python and TypeScript:

  pip/poetry/uv/rye install zenbase-llml
  npm/pnpm/yarn/bun install @zenbase/llml

Experimental Rust and Go implementations also available for the adventurous :)
Key features:

  - ≤1 dependencies
  - Extensible formatter system (create custom formatters for your domain objects)
  - 100% test coverage (TypeScript), 92% (Python)
  - Identical output across all language implementations

The formatter system is particularly neat - you can override how any data type is serialized, making it easy to handle domain-specific objects or sensitive data.
GitHub: https://github.com/zenbase-ai/llml
Would love to hear if others have faced similar prompt engineering challenges and how you've solved them!

value: Show HN: LLML: Data Structures => Prompts

author: knrz


value: KaoruAK

value:
I’ve developed a new public-key encryption scheme (DIAC) that uses multidimensional, high-precision complex keyspaces and a modular trapdoor function for ultra-high entropy and quantum resistance. The code, benchmarks, and research paper (PDF) are all open-source: https://osf.io/mvkcq/
Would love feedback, questions, or cryptanalysis!

value: Show HN: DIAC – Open-Source Quantum-Resistant Cryptosystem

author: KaoruAK


value:
Problem: My friend-group meets once a week to play board games. We were looking for a way to track who has what game, how often we play different games, and who wins.
Solution: I decided to make a discord bot to track our games and session. This was a logical approach, since we use discord for planning our get-togethers.
For fun, I also implemented an ask_ai feature using Open AI to ask questions about games and rules.
I used supabase for the backend because it has an easy sign up process, decent free tier, and didn't ask me for a credit card up front.
This is the first time I have used AI (ChatGPT) to do a lot of code generation. I've used it in the past to answer specific questions, but this time I used it more extensively.
Here are some things I learned:
ChatGPT is pretty powerful. I could give it a prompt like "Write a command called /add_game that lets the user add a game to their collection" and it would give me back a fairly complete result. But, it is not without its limitations.
ChatGPT is really bad at remembering what it has already done. I'm still in the process of removing redundant code, especially in the supabase helpers. Every time it needed to use the database it wrote a new helper function instead of using one it already wrote. I ended up with things like create_user, get_and_create_user, create_user_and_get_id, etc.
ChatGPT is terrible at writing tests, at least for python. Most of the tests it wrote would not run correctly. It was more work trying to fix its tests than try to write my own.
ChatGPT will absolutely just make stuff up. We already knew this, of course, but it's worth mentioning as often as possible. I used the ask_ai feature for the following question "Who goes first in Veiled Fate." Veiled Fate has a very specific mechanic for determining who goes first (deal fate cards to each player and the one with the feather goes first). I asked the AI the question several times and it gave me the wrong answer every time, and every answer was different. Some of the more fun answers "the last person to see the stars," "the person who most recently traveled abroad," "the person who most recently went to the forest," etc.
---
So, this is still a work in progress. If you have feedback, let me know.

value: Show HN: Squire – A Game Night discord bot


value: monsteraFrond

value:
I'm in university and I'm broke. So naturally, last year, I got hit with the weirdly common desire to start trading - only to discover that every “solution” out there felt intimidating, too time-consuming or even scammy. It seemed wild then how so many people crave an approachable path to the markets, but none exists.
I was then venting to a buddy about it, and only in that rant, the idea of MoMoney was somehow born — a Duolingo for investing + trading that gamified everything, the same friend I'm actually building with this summer. We then got to some market research and discovered outrageous whitespaces for something like this, and so we started.
We asked users to brutally rate a handful of “what-if” investing scenarios, then used that raw feedback to craft personalized lesson paths — and paired it with a live, game-style trading sandbox that (hopefully) feels more like play than work for the practice anyone sorely needs to get good at trading and/or investing.
TLDR: MoMoney is a “Duolingo-for-investing” app that combines microlearning with a simplified trading simulation so you can learn and practice real-world trading in minutes. We built an MVP to test its reception!
First time posting here on HN, I'd love to hear any thoughts at all

value: Show HN: I made a Duolingo but for Investing (with a Simplified Trading Window)

author: monsteraFrond


value: pavelparma

value:
Hi HN! I’m the maker of Pelyos, a minimal task management app built to help individuals reduce daily stress and improve clarity.
I built Pelyos after feeling overwhelmed by long, flat to-do lists that just kept growing. I wanted something timeline-based, simple, and more mindful — not a full-blown team tool or a cluttered app.
I’d love your feedback on what’s working, what’s confusing, and what features would make this more useful for you. I’m currently bootstrapping this solo and hoping to make it truly helpful for knowledge workers, founders, and productivity nerds.
Thanks for checking it out!

value: Show HN: Pelyos – A calm, minimal task manager for clarity and focus

author: pavelparma


value: It's a game where you try a make an accurate guess about number of people in each image. 5 images come every day. Looking forward to your feedback or suggestions!

value: Show HN: I made a crowd counting game

title: Show HN: I made a crowd counting game


value: downoff

value:
Hi everyone, I'm a developer building a tool to help automate social media post creation. Before I add more features, I'd love to get feedback from real marketers on whether this is actually useful. Would anyone be willing to try it out and share their honest thoughts?
Keep in mind this is just an MVP and not a full blown website (yet), I am just testing to see if anyone would actually use it and then we would move on to making it truly functional and aesthetic.
If anyone has actual questions instead of straight hating, feel free to dm me.
Thank you!
Check it out if you want.

value: Show HN: Lucius – An AI assistant for social media marketers

author: downoff


value: aroojjaved

value:
Hi HN
I just released an open-source tool that helps support teams using JIRA to proactively manage ticket SLAs and predict potential breaches before they occur.
It uses Python + AI to analyze historical JIRA data, learn ticket resolution trends, and identify high-risk tickets likely to breach SLA. The tool also includes visualization dashboards and a lightweight classification model trained on real-world support patterns.
Repo:
GitHub – SLA Breach Predictor for JIRA
Why I built this:
I worked in support engineering and often saw teams overwhelmed with manual tracking and reactive firefighting. This project aims to give them smart, automated foresight without relying on heavy enterprise tools.
Would love feedback, suggestions, or even collaboration!
Thanks
— Arooj

value: Show HN: AI-Powered SLA Breach Predictor for Jira (Open Source, Python)

author: aroojjaved


value: rendernos

value: Show HN: I Built an AI Copilot for Crypto Traders

author: rendernos


value:
Hi Hackernews,
We recently added a major feature - you can now practice typing code in 23 programming languages.
(Not mobile friendly)
Try it now at https://www.typequicker.com/code

value: Show HN: TypeQuicker Code – Practice touch typing code in 20 coding languages


value: aaurelions

value: Show HN: Create video tours of your data for YT Shorts, IG Reels and TikTok

author: aaurelions


value: psvisualdesign

value:
Hi HN,
I'm a cyber security and mobile forensics expert from Berlin, with a background working in KRITIS (critical infrastructure security) in Germany. Over the years, I’ve seen how often health and personal data is mishandled or sold.
I’ve also personally struggled to track my health data (weight, blood pressure, calories). I tried spreadsheets and various apps, but always stopped because they felt clunky and I didn’t trust where my data was going.
That’s why I built FitmMetr — a simple, privacy-focused health tracker:
Hosted securely in a German datacenter
Strongly encrypted data
No ads, no data selling, no hidden analytics
You can calculate your BMI, calorie needs, and track all your health data in one intuitive place.
It’s free for now — I’m looking for feedback and to see if people actually find this useful before adding more advanced features.
Try it here  https://fitmetr.app/
Happy to answer any questions!

value: Show HN: FitmMetr – A privacy-first health tracker built by a CSO

author: psvisualdesign


value:
Can we generate AI videos without requiring any prompt?
The answer is yes — and fun.
Meme-gen.ai turns any photo into an AI-powered meme video using zero prompts. You don’t need to type a single word. Just pick a template, upload a photo, and our system handles the rest: motion, expressions, timing, and audio. All generated and composited automatically.
What’s interesting:
We added and supported thousands of templates
Built for instant creativity and remixing
I wanted to remove the friction of prompting and decision paralysis — and instead, give people a playground where AI does the heavy lifting.
If you're curious:
https://meme-gen.ai
Would love your feedback!

value: Show HN: Zero-Prompt Video Generation

title: Show HN: Zero-Prompt Video Generation


value: obitoACS

value: High performance object storage can reduce the overhead of long sessions.

value: Show HN: Bottomless Storage for Agent Memory

author: obitoACS


value: Show HN: uvtarget – a helpful utility to manage Python in CMake, powered by uv


value: electroly

value: This is a fork of Windows File Manager combined with a from-scratch remake of Program Manager. Fast, lightweight, and suitable for daily driver use.

value: Show HN: Modernized file manager and program manager from Windows 3.x

author: electroly


value: qwikhost

value:
Export WhatsApp contacts with WhatsApp Contact Exporter. Save numbers and names to CSV, Excel, or JSON for easy backup.
WhatsApp Contact Exporter – Extract & Save WhatsApp Contacts Easily!
Transform how you manage and download your WhatsApp contacts with WhatsApp Contact Exporter – the ultimate Chrome extension for seamless contact extraction and export. Perfect for individuals, marketers, and businesses wanting to organize or back up their WhatsApp data with ease.

value: Show HN: WhatsApp Contact Exporter

author: qwikhost

title: Show HN: WhatsApp Contact Exporter


value: arandomhuman

value: A Language Server Protocol (LSP) implementation for systemd unit files, providing editing support with syntax highlighting, diagnostics, autocompletion, and documentation made with rust.

value: Show HN: A Language Server Implementation for SystemD Unit Files

author: arandomhuman


value: panyanyany

value: Show HN: A pure photo collage tool

author: panyanyany

title: Show HN: A pure photo collage tool


value:
We built a business "super" agent called DeepSky. The goal is to power entire businesses with our agent.
We started with making it really good at deep business research to enable business users to do hard (mostly) qual research tasks like competitive analysis, investment research, policy research, business plan development, etc.
We also have the same AI read and analyze the news for you.
Obviously early in our journey, but we have a few things on our roadmap for the next quarter.
1. Enabling more powerful, long running tasks, that could be scheduled in the background.
2. Making the research more complex and enabling quantitative research.
3. Letting you automate processes with the agent, not just automating research workflows.

value: Show HN: DeepSky, a New AI Superagent for Business


value: nsomani

value: Hey folks, I built this as a nightly job that pulls the tweets from a burner account I made, then passes it to GPT-4.1 to summarize alongside some recent headlines: https://github.com/neelsomani/tweet-insight-daily/blob/main/...

value: Show HN: I built a website to summarize Tech Twitter each day

author: nsomani


value: abhsag

value: Show HN: Formstr releases on device AI generated forms powered by Ollama

author: abhsag


value: NaNXVibeCoder

value:
I built (mix of vibecoding and vibe-rage-debugging) an app for simulating focus groups using LLMs. A focus group is a small group of ppl hired to evaluate some product/concept/etc. The premise is that LLMs are, with the right prompting, good enough at imitating the probability distribution of opinions of common demographics if prompted to imitate them. Of course this depends a lot on the prompting -- if you prompt superficially the next-token predictor will return an equally generic answer.
You can feed in a website, define a study group and questions, and receive feedback. Currently in early beta.
Behind the scenes it uses a series of prompts to first figure out what your submitted content is about to prefill a suggested focus group and questions. If ticked, it will try creating "variations" of your content using an image model to be compared. Then the original and variations are shown to loads of instances of the openAI LLM with various prompts such as "You're a <demographic> study group participant evaluating <thing> so answer question <q>". Let me know if you have any suggestions for features etc and whether you find the concept interesting or would do something differently tech-wise. Thx!

value: Show HN: Simulate "Synthetic" Focus Groups with LLMs

author: NaNXVibeCoder


value: ArcticLangoor

value: Built a 3-inverter ring oscillator using CSS’s new if() logic for gate behavior. JavaScript drives the feedback loop and updates custom properties to bypass CSS’s cyclic restrictions. Includes waveform rendering, dynamic transitions, and browser-based digital circuit simulation

value: Show HN: Ring oscillator circuit implementation using the CSS if() function

author: ArcticLangoor


value:
I built Error Narrator — a Python tool that explains exceptions in plain English (and Russian, too).
It goes beyond just showing the traceback. It tells you:
– What happened (in human terms)
– Why it happened (including the concept behind the error)
– Where exactly it happened (file + line)
– How to fix it (with code suggestions)
It works with OpenAI or HuggingFace models and runs directly in your terminal or scripts.
This tool helped me save time and also helped friends who are just learning Python. I'd love your feedback, suggestions, or even contributions. It’s open source.

value: Show HN: A tool that explains Python errors like you're five


value: zigrazor

value:
Hi HN!
I've built [CXXStateTree](https://github.com/ZigRazor/CXXStateTree), a modern C++ header-only library to create hierarchical state machines with clean, intuitive APIs.
It supports:
- Deeply nested states
- Entry/exit handlers
- State transitions with guards and actions
- Asynchronous transitions with `co_await` (C++20 coroutines)
- Optional runtime type identification for flexibility
It's ideal for complex control logic, embedded systems, games, robotics, and anywhere you'd use a finite state machine.
I’d love feedback, use cases, or contributions from the community!
Repo: https://github.com/ZigRazor/CXXStateTree

value: Show HN: CXXStateTree – A modern C++ library for hierarchical state machines

author: zigrazor


value: nobodywho

value:
Hey, Hello, we are the team behind NobodyWho; an open-source plugin that embeds large language models functionality inside Unity and Godot games - completely locally and offline.
We try to make it as easy and user friendly as possible to use our plugin, so feel free to create an issue on our GitHub if you have any inconveniences - and we will try to improve it!
So why might this interest you:
- Written in Rust with llama.cpp bindings and optional GPU back-ends (Vulkan / Metal) for fast inference.
- Drop-in nodes / components: add a model asset and a chat or embedding node and get a working prototype almost instantly.
- Tool calling – register C#/GDScript methods and let the model invoke them at runtime.
- Grammar-constrained output – force output to be valid JSON or custom grammar.
- Automatic context shifting & streaming – handles long dialogues by shifting the context and streams tokens.
- Embeddings API – similarity search and comparisons.
- Cross-platform binaries for Windows, Linux, macOS.
- Permissive EUPL-1.2 licence (free for commercial games, only plugin forks must remain open).
Quick start
- GitHub repo & docs: https://github.com/nobodywho-ooo/nobodywho
- Unity & Godot packages in the releases section (Asset Store submission for tool calling in Unity is still pending).
We built NobodyWho to enable richer, privacy-friendly AI gameplay without server bills.
Feedback, issues, and PRs are welcome and if it helps your project, a star makes discovery easier.
Cheers!
— NobodyWho team

value: Show HN: Local LLM Inference in Godot and Unity

author: nobodywho


value: cloudrec

value:
As more organizations migrate to the cloud, developers are increasingly responsible for managing cloud resources. However, many developers—especially those without a cybersecurity background—may not realize how easily a misconfiguration can lead to serious security risks. From accidentally exposing storage buckets to the internet, to granting overly broad permissions, small mistakes can have big consequences.
That’s where CloudRec comes in. CloudRec is an open-source Cloud Security Posture Management (CSPM) platform designed to help developers and organizations secure their cloud environments across multiple providers, including AWS, Alibaba Cloud, and GCP.
Why should developers care about cloud security?
Cloud platforms offer flexibility and scalability, but they also introduce a shared responsibility model: while the provider secures the infrastructure, you are responsible for configuring your resources securely. Common misconfigurations--like open databases, weak identity policies, or missing audit logs--are among the leading causes of data breaches.
What does CloudRec do?
1. Asset Discovery: Automatically scans and inventories your cloud resources across multiple providers, giving you visibility into what’s running in your environment.
2. Risk Detection: Continuously checks configurations against real-world security rules. For example, it can flag databases that are publicly accessible or detect overly permissive network rules.
3. Custom Policies: Uses Open Policy Agent (OPA) for flexible, declarative security policies. You can adapt rules to your organization’s needs without redeploying.
4. Multi-Cloud Support: Built-in support for AWS, Alibaba Cloud, GCP, and extensibility for others.
5. User-Friendly Interface: Provides a web UI for managing assets, editing rules, and tracking risks—no deep security expertise required.
Getting started is easy:
CloudRec offers a DockerCompose-based quick start, so you can deploy the platform locally or in your environment with just one-line command.
Why open source?
Transparency and community-driven development are critical in security. By being open source, CloudRec invites contributions and scrutiny, helping ensure the platform remains trustworthy and up-to-date.
If you’re a developer working with the cloud--even if security isn’t your main focus--CloudRec can help you avoid common pitfalls and strengthen your cloud posture. Check out the project on GitHub or try the live demo at demo.cloudrec.cloud.

value: Show HN: A security product for cloud misconfigurations

author: cloudrec


value: A retro homage, eternal wip but playable. From the people that brought you https://github.com/raould/pn0gstr0m

value: Show HN: 2D browser defender / choplifter cute-em-up


value: AlexCyon

value:
https://github.com/Sajjon/klirr
Tired of manual bumping invoice number, calculating number of working days and looking up exchange rates and converting expenses into your currency?
Do you prefer automation? Then klirr is something for you!
Klirr is an AMAZING (Aesthetic, Multi-layouts/-language, Automatic, Zero-Maintenance, Inter-month Idempotent, Nimble, Gratis) invoice solution written in Rust + Typst
- *A*esthetic – *Produces polished, professional invoices*. Klirr uses Typst templates to generate a beautiful invoice PDF for your services and expenses, so the final result looks as good as a hand-crafted invoice, with consistent styling and formatting.
- *M*ultiple layouts & languages – *Localized and dynamic with support for multiple layouts*. Klirr dynamically loads invoice labels in different languages via i18n, and currently supports English and Swedish (adding more languages is trivial). This means your invoices can easily be generated in the language that suits you or your client. The invoice format is powered by Typst, and while Klirr comes with one elegant layout by default, the code is prepared to very easily support additional layouts. You can extend or customize the template system to suit different styling needs, ensuring the solution can grow with your business.
- *A*utomatic – *Automatically accounts for dates and work days*. Klirr uses your system’s calendar to determine the target month’s working days and sets the invoice date to the last day of the month, with the due date calculated based on your specified payment terms. It even allows you to mark any days you were off work, subtracting those from the billable days – all handled automatically so that your invoice reflects the correct time worked.
- *Z*ero-Maintenance – *One-time configuration* via an interactive Terminal UI captures all company, client, and project info. After this initial setup, no manual editing is required, and no coding or format knowledge (Rust/Typst/[RON][ron]) is needed
- *I*nter-month Idempotent – *Inter-month idempotence* ensures consistent invoice numbering. No matter how many times you build an invoice in a given month, it will reuse the same invoice number. When a new month begins, Klirr automatically increments to the next number. This guarantees a stable, chronological sequence of invoices without duplicates or gaps.
- *N*imble - *Quickly and effortlessly generates invoices in no-time*
- *G*ratis – *Free and open source forever*.
If that was not enough, klirr also supports [generation of expense invoices](https://github.com/Sajjon/klirr?tab=readme-ov-file#expenses-...) which automatically fetched currency exchange rates and translates them into your currency at the date of transaction for all your purchases.
Klirr also supports [automatic emailing of the invoices](https://github.com/Sajjon/klirr?tab=readme-ov-file#email)
*This is perfect for freelancers who have one single client and invoice per day once per month - a common consulting setup.*
Do you have improvement suggestions? Or perhaps some invoice layout/design you love and would like me to support, let me know!
I would love it if you could give me a  on Github, thank you
Klirr is open and free forever, under MIT license.

value: Show HN: Zero-maintenance, smart, automagic, FOSS generating+emailing invoices

author: AlexCyon


value: rodisproducing

value:
Hi HN,

  I built JSONChecker because I was tired of staring at cryptic JSON syntax errors from APIs and config
  files. You know the pain – "SyntaxError at line 847" but good luck finding what's actually wrong in a
  wall of JSON.

  Why I built this:
  • Spent too many hours debugging malformed JSON from third-party APIs
  • Existing tools either crashed on large files or gave unhelpful error messages
  • Wanted something that could actually fix common issues automatically

  What it does:
  • Real-time validation with precise error highlighting
  • Pattern-based auto-repair (fixes missing quotes, trailing commas, bracket mismatches)
  • Visual diff showing exactly what changed
  • Handles large files without browser freezing (learned this lesson the hard way)

  Technical details:
  • Built with Next.js, runs entirely client-side (no data sent to servers)
  • Uses Web Workers for processing large files without blocking UI
  • Custom safety mechanisms to prevent infinite loops on malformed input
  • Rule-based repair engine using heuristics rather than simple regex

  The auto-repair feature works surprisingly well on common JSON errors. I've tested it with real-world
  malformed JSON from various APIs and it catches most issues developers encounter daily.

  Try it with some intentionally broken JSON – paste in something with missing quotes or trailing commas
  and watch it fix itself.

  Would love feedback from fellow developers who debug JSON regularly. What other features would make this
   more useful for your workflow?

Yeah, you can try here(totally free): https://jsonchecker.best

value: Show HN: JSONChecker – Visual JSON debugger with auto-repair

author: rodisproducing


value: kuzej

value:
As a developer who does woodworking on the weekends, I kept getting my lumber estimates wrong. Last year, a miscalculation on a walnut dining table cost me a lot of money and a frustrating trip to the lumber yard.
Existing online calculators were either too simplistic or required deep knowledge of obscure timber industry standards (like Doyle vs. International 1/4-Inch rules).
So I built my own: https://board-foot-calculator.xyz/
It's a suite of tools that handles nominal vs. actual dimensions, cost estimation, unit conversions (imperial/metric), and even log scaling.
The fun technical challenge was correctly implementing the historical scaling formulas. For example, the Doyle Log Rule (D-4)² × L / 16 isn't just a simple formula; it has specific exceptions for smaller logs. The International 1/4-Inch rule is a complex piecewise function. Getting these right required digging through old US Forest Service (USFS) documentation.
It's built with vanilla JS for speed and is fully responsive for use at the lumber yard.
My last project was a set of kitchen cabinets. The calculator estimated $800, my final cost was $785. It works.
Hope it's useful to other hackers who build things. Feedback is welcome.

value: Show HN: I built a proper board foot calculator

author: kuzej


value: eminozata

value: Show HN: Nexus – A One-Page JSON Visualizer with Interactive Graphs

author: eminozata


value: stjernberg

value: Any feedback is appreciated!

value: Show HN: I built a free tool to make screenshots look way better

author: stjernberg

story_text: Any feedback is appreciated!


value: rsaraceni

value:
Hi everyone, I am a guitar player and I have been using Ableton Live for some time to record my tracks and apply some effects.
Ableton Live is a very complex software with thousands of different features to mix and create music and for someone who is not an expert in music production or sound engineering it can be quite difficult to use.
This is why I have decided to create an app that works as a chatbot that can read the Ableton Manual for me and answer all my questions.
You can try it for free and no signup or credit card needed.
I would love to hear the feedback of other Ableton users on this and also understand if I can help with something else.

value: Show HN: AI Assistant for Ableton Live 12

author: rsaraceni


value: mandarwagh

value:
Hey HN,
I just built a small web app that helps you generate /llms.txt files for your website:
 https://llmstxt-cyuh.vercel.app
GitHub: https://github.com/mandarwagh9/llmstxt
What is /llms.txt?
Think of it like robots.txt, but for large language models. It’s a new emerging standard that gives LLMs a clean, Markdown-based map of your most important content (docs, guides, APIs). Instead of crawling bloated HTML, they get straight to the point.
The idea was popularized by Jeremy Howard and is gaining adoption across devtool companies like LangChain and Mintlify.
Why I built this
I wanted a dead-simple way to auto-generate /llms.txt from any docs site or URL. This tool scrapes your site, extracts key Markdown links, and gives you a copy-paste-ready llms.txt.
No setup, no install, just paste your URL and download.
Stack
Frontend: Vercel + vanilla JS
Backend: Uses Gemini API (but can swap in any LLM)
Built with a focus on minimal UI + performance
Would love feedback, feature ideas, or suggestions for edge cases to cover (like private docs, multi-language support, etc.)
Thanks!

value: Show HN: Instantly generate /llms.txt to make your website AI-readable

author: mandarwagh


value: chrismatic

value:
Hey all,
I have gotten frustrated with how hard it is to get (small) teams to adopt monorepo build tools such as Bazel. So I wrote a super simplified version of Bazel that strips out all the complicated stuff and just lets you run your existing make goals, npm commands, etc. while giving you parallel execution, caching, and much more.
I am looking both for feedback on the code aswell as potential adopters so that I can get more real world usage before an official v1.0.0 release. Currently, we are only using it at my workplace where it has been tremendously useful.
https://grog.build/why-grog

value: Show HN: Grog – the monorepo build tool for the grug-brained developer

author: chrismatic


value: zbunj

value: Show HN: Stryng – Automate Your Blog and Social Media Workflow with AI

author: zbunj


value:
I've been thinking about ways to improve emotional self-awareness without relying on mood logs, which often feel forced or artificial. Instead of asking "how are you feeling?", what if we looked at what someone did during the day — and derived their emotional state from that?
I tried implementing this using a BERT-based model trained on Google’s GoEmotions dataset (which covers 28 nuanced emotions like remorse, joy, optimism, etc.). The idea is to let users reflect on their good or bad deeds, and then use NLP to classify the underlying emotions.
Some patterns I’ve noticed:
Visualizing daily dominant emotions on a color-coded calendar gives a quick emotional overview.
Comparing emotions across days offers insights into how our actions shape our emotional trends.
Action-first reflection seems to reduce the pressure to “perform” emotionally compared to mood logs.
This is all part of an Android experiment I’m working on. Curious if others here have explored similar approaches — using AI to model emotion based on actions rather than self-reporting. Would love to hear your thoughts or feedback.
If you're curious about the implementation or want to see what the Android experiment looks like in action, I wrote more about it here:
https://medium.com/@va6042/what-if-your-daily-actions-could-...
Feedback — technical, UX, or philosophical — is very welcome.

value: Show HN: Exploring emotional self-awareness via action-based journaling and AI


value: admtal

value:
Hello all,
About a month or so ago, you were all so nice as to put Lazy Tetris on your front page, and I've never felt so popular.  More than 30,000 people have played the game all over the world.  I'm truly happy if anyone is enjoying this fun project.
So yes, I'm re-posting this, sorry if it's too soon, but I wanted to thank you for your amazing feedback in the comments: https://news.ycombinator.com/item?id=44103839
I've added the following features since we last spoke:
- iOS app (why?  Of course Monetization, but Haptics are also cool)
- translations into a few languages
- Mixed bag instead of fully random peices
- "Super Rotation System" with some custom tweaks (https://harddrop.com/wiki/SRS)
- More musical modes
- Better keyboard support (more buttons)
- Auto-mode -- to clear lines automatically when ready
- A hidden "buffer row" at the top
- Score widget (for counting lines cleared)
Some stuff in the iOS version:
- Re-titled to "Lazy blocks"
- Ability to Save and continue games later (on app close + open)
- Play Offline (best feature)
- Haptics
- Piece Selector (Unlockable via IAP)
iOS app was build using Capacitor.

value: Show HN: Lazy Tetris

author: admtal

title: Show HN: Lazy Tetris


value:
TL;DR: This app, Hawksubber, automatically finds your subscriptions by scanning email receipts - no manual entry, no bank connections needed
https://apps.apple.com/app/hawksubber/id6747628748
I've been working as a software developer for almost 6 years but never tried mobile development. I came up with this idea when I was talking with my coworkers about how easily we forget about services we subscribe to. Then I looked into subscription management tools out there and found that most of them require manual input to manage subscriptions, and some require a bank/credit card connection. I thought that manual entry is tedious, and apps with a bank/credit card connection are fine. But what if your bank account or credit card isn't supported?
Then I came up with a middle ground solution: connecting with your mail server, fetching receipt/invoice emails, using AI to scan emails, and extracting the subscription info.
It took a month to release it, struggling with the app submission process and Gmail API verification (which I haven't completed yet).
6 downloads so far, no paying customers on the App Store. There's no Android version yet (I'm working on it).
It's always fun to try new stuff and build software. But this time, I hope someone finds it useful, or at least I can get real users who give me feedback to make it better.

value: Show HN: New Subscription Manager, no manual work, no card/bank info


value: alterebro

value:
"Bye 'For You' " is a browser extension that removes the algorithmic X 'For you' evil tab, it defaults to the "Following" tab instead so you can now follow only who you actually follow without the noise and zombie scroll.
It is available both on the Chrome and Mozilla Web Stores to download and it's Open Source so you are free to contribute by adding more languages if you want :)

value: Show HN: A browser extension that removes the algorithmic X 'For you' evil tab

author: alterebro


value: pxsnlrbg

value:
I made a tool to list your AWS account Lambda Function last invocation time.
Currently, AWS doesn't provide Lambda Function's last invocation time on AWS console. You can only check it for individual Lambda Function by using its metrics or logs manually. This tool aims to help Cloud Administrator to perform account checkup and cleanup by providing a list of Lambda Functions last execution time in a CSV table.
This tool works by querying Lambda Function logs in the CloudWatch Log Group and check the latest log timestamp. I made it so that it queries multiple log groups concurrently for a faster execution time.
I'd love to listen to the feedback on the code, project architecture, and design pattern I made.

value: Show HN: I made a tool to list your AWS account Lambda Function invocation time

author: pxsnlrbg


value:
Hey everyone!
After months of managing prompts in spreadsheets and losing track of which variations performed best, I decided to build a proper solution. PromptBuild.ai is essentially GitHub meets prompt engineering - version control, testing, and performance analytics all in one place.
The problem I was solving:
- Testing 10+ variations of a prompt and forgetting which performed best
- No systematic way to track prompt performance over time
- Collaborating with team members was chaos (email threads, Slack messages, conflicting versions)
- Different prompts for dev/staging/prod environments living in random places
Key features built specifically for prompt engineering:
- Visual version timeline - See every iteration of your prompts with who changed what and why
- Interactive testing playground - Test prompts with variable substitution and capture responses
- Performance scoring - Rate each test run (1-5 stars) and build a performance history
- Variable templates - Create reusable prompts with {{customer_name}}, {{context}}, etc.
- Global search - Find any prompt across all projects instantly
What's different from just using Git:
- Built specifically for prompts, not code
- Interactive testing interface built-in
- Performance metrics and analytics
- No command line needed
- Designed for non-technical team members too
Current status:
- Core platform is live and FREE (unlimited projects/prompts/versions)
- Working on production API endpoints (so your apps can fetch prompts dynamically)
- Team collaboration features coming next month
I've been using it for my own projects for the past month and it's completely changed how I approach prompt development. Instead of guessing, I now have data on which prompts perform best.
Would love to get feedback from this community - what features would make your prompt engineering workflow better?
Check it out: https://promptbuild.ai
P.S. - If you have a specific workflow or use case, I'd love to hear about it. Building this for the community, not just myself!

value: Show HN: Promptbuild.ai – Version control for LLM prompts


value:
Tallya (from “tally,” meaning to count, plus “-a” for action) is built after years of watching raw numbers twitch - 317 → 318 → 319 on dashboards and analytics pages. It’s a utility that turns any count into a stable, human-friendly bucket:
• 317        → 300+
• 7 321      → 7K+
• 12 345 678 → 12M+
Tallya is intentionally minimal—one function, one option (suffix). It solves two core UX problems:
  1. Prevents distracting flicker when counts update
  2. Improves readability and social proof (“7K+ users” vs “7321 users”)
Use Cases
  • Live analytics dashboards
  • Marketing pages with “sold” or “views” badges
  • Real-time leaderboards in games or social apps
Early Roadmap
  • v1.x: custom thresholds, locale support, exact-mode toggle, bucketing
  • v2.0: factory API for ultra-high-frequency formatting
  • v3.x: community-driven bucket strategies, integrations, plugins
I’d love your feedback on:
  • Does this minimal API feel right?
  • Which roadmap item should come next?
Check it out and contribute:
https://github.com/faizanu94/tallya
https://www.npmjs.com/package/tallya
```js
import { getLabel } from 'tallya';
getLabel(7321, { suffix: ' users' }); // '7K users'
Let’s build the definitive count-labeling library together!

value: Show HN: Tallya – The minimal UX foundation for count labels


value: thunderlab

value:
I built this weird little drawing app where:
Gemini AI turns your text prompts into JSON-based shape instructions
The server renders the image using Python PIL on a plain Linux CPU (no GPU, no canvas)
The site is intentionally slow — CPU rendering is inefficient and queue-based
Limited to 2 requests per day due to Gemini API free tier limits
You can watch your request crawl through a real-time processing queue
It’s purposefully “bad” — just basic geometric shapes — but somehow still oddly entertaining.
The whole point was to see if we could build something fun using only CPU rendering and free-tier AI.
Live demo: https://poops-draw.site
 Tech: FastAPI, Gemini API, PIL, MySQL, Docker

value: Show HN: CPU Shit Drawer – AI Generates JSON Coordinates, CPU Renders with PIL

author: thunderlab


value: Show HN: Multi Search Booster – Open multiple websites with one search


value: alexcolewrites

value:
Hey everyone!
So I've been gaming on Steam for years, and I'm sure you've all been there - trying to find someone's Steam ID or compare profiles with friends, only to end up on these sketchy sites loaded with ads that take forever to load. I got so fed up with it that I just decided to build my own tool.
Meet steamid.one - basically everything I wished existed but couldn't find anywhere else.
Here's what bugged me enough to build this: You know how you're trying to set up a game server and need to convert a bunch of Steam IDs? Or you want to see what games you and your friends have in common? You'd have to bounce between like 3 different websites, half of which are trying to install sketchy browser extensions. Not fun.
What I ended up building:
* ID conversion that actually works fast - throw any Steam ID format at it and get back all the others instantly
* Profile comparison - compare up to 3 friends at once to see shared games, who's been playing what, ban status, all that good stuff
* AI game suggestions (this one I'm pretty proud of!) - when you're comparing profiles, you can sign in through Steam and it'll actually analyze what you've all been playing and suggest new multiplayer games you might enjoy together. It gives you three picks: something everyone will probably like, an indie gem you might have missed, and a wildcard option.
* Bulk converter for the server admin folks who need to convert lists of IDs
The nerdy bits:
Built it with Python/FastAPI on the backend, kept the frontend simple with server-side rendering, and used Redis for caching so everything loads super fast. The AI suggestions run on Google's Gemini API. Whole thing's hosted on Vercel.
Honestly, this started as just scratching my own itch, but it turned into a pretty good learning experience with Python and FastAPI.
I'd love to know what you think! Have you run into similar frustrations with Steam tools? What other features would actually be useful and not just bloat?
Thanks for checking it out!

value: Show HN: Instant Steam ID Lookup, Profile Comparison, and AI Game Suggestions

author: alexcolewrites


value: rizkimurtadha

value:
After countless hours of solo coding, designing, and iterating, I’m both excited and nervous to share my first-ever product: PrompTessor — now live.
As someone who constantly experiments with AI tools like ChatGPT and Midjourney, I often found myself stuck in a loop of trial-and-error. The issue wasn’t always the AI — it was often the prompt itself. That observation became the starting point for PrompTessor.
This tool doesn’t just optimize your prompt — it analyzes it. It gives you:
- A prompt score
- A breakdown of strengths and weaknesses
- A fully optimized version of your prompt
- And even a step-by-step guide on how to improve it
PrompTessor evaluates your input across six dimensions: Clarity, Specificity, Context, Goal, Structure, and Constraints — helping you communicate more effectively with any LLM.
It’s free to try, and my main goal right now is to gather as much real-world feedback as possible. As a solo founder, honest reactions and suggestions from this community would mean the world to me.
Try it here: https://promptessor.com
Every piece of feedback is incredibly valuable, and will help me shape PrompTessor into something truly useful.
Thanks for reading!
Happy to answer any questions in the comments.

value: Show HN: I built PrompTessor – a tool to help people write better AI prompts

author: rizkimurtadha


value: farmdawgnation

value: Show HN: Metashot: API for generating images from Metabase questions

author: farmdawgnation


value: mlivneh

value: Show HN: I'm a teacher who built fireClass to wrap any site in the classroom

author: mlivneh


value: theotrama

value:
Article: https://github.com/theotrama/dns-resolver/blob/main/article/...
Deployed version: https://domain-name-resolver.fly.dev

value: Show HN: A recursive DNS resolver written in Erlang

author: theotrama


value: marcoluthi

value:
Hi everyone, happy to share that my first macOS app is now live on the App Store.
It’s called Snippet. It’s a little sideboard for your clipboard items.
As a designer and developer, I’m constantly bouncing between apps, copying bits of text, images, colors, and files. I wanted something lightweight to keep those things visible for a moment without needing a full clipboard history.
Snippet isn’t a history manager. It’s a short-term, visual space for what you’re using right now.
If you need it longer, lock it or save it. Everything else just stays within reach in the notch until you’re done.
You can quickly glance at what you’ve copied, see images properly scaled, colors as swatches, file names and types. It sits in your Mac’s notch or menu bar and opens with a shortcut or a click.
Let me know what you think :)

value: Show HN: Snippet – Copy and paste sideboard for your Mac

author: marcoluthi


value: RyanDavid

value:
I’ve been a freelance data analyst/developer for a while and I’d regularly get hired to build custom data pipelines and dashboards in Google Sheets/Looker Studio. Custom data integrations came with a large upfront cost, and possible maintenance but clients told me they were reluctant to use the major data connector platforms as they were complicated and expensive over time, so I decide to fix this.
I built DataFlowed to be dead simple data connector to Google Sheets with a generous free plan and simple pricing.
So far I’ve built out the following connectors based on the needs of my clients and early users:
- Shopify
- Facebook/Instagram ads
- Google Ads
- Google Analytics
- Google Search Console
I plan on adding more connectors as needed by my clients/users, most of which are in the ecommerce/marketing space so I will focus my time there.
After years of building projects that I thought we interesting, but were not validated, I have really noticed the difference building something customers actually want.
Please let me know if you have any feedback.

value: Show HN: I built a simple tool to automate business data into Google Sheets

author: RyanDavid


value:
This community has helped me grow a lot as a builder and as a person with goals. Gave my posts 12k+ views, gave my saas (https://saasrocket.pro) constructive criticism and ways to improve marketing. Today i wanna give back this:
just shipped https://encouragementhunt.space today. Its a free encouragement platform for people to anonymously post their goals and others can anonymously give them encouragement to pursue that goal.

value: Show HN: EncouragementHunt, My way of giving back to the community


value: evolgas

value: Show HN: Data Alchemy – Automated feature engineering with specialized AI agents

author: evolgas


value: gdcbe

value: Show HN: Rama – Rust framework to empower you to build proxies

author: gdcbe


value: venelinkochev

value:
I built devtool.io over a weekend to solve a recurring pain point: discovering and keeping track of high-quality developer tools. I've lost count of how many times I've bookmarked a great CLI, API tester, or AI tool—only to forget where I saw it.
DevTool.io is a minimal, searchable directory where developers can find and compare tools by category (CI/CD, Frontend, AI/ML, Databases, etc.), see what's trending, and browse curated picks. Each tool includes metadata like website, GitHub, category, and tags (open-source, freemium, etc.).
Feedback, ideas, or tool suggestions are all welcome!
Happy to answer any questions.

value: Show HN: A Curated Directory of Developer Tools Built in a Weekend

author: venelinkochev


value: trknhr

value: Show HN: AI-docs (Git-based workflow to manage AI-generated memory files)

author: trknhr


value: rhyizm

value: Show HN: Unified-LLM – One TypeScript API for OpenAI, Claude, Gemini etc.

author: rhyizm


value: HeavenFox

value:
Hello HN!
As a long term NYC resident, I have read countless articles on ideas tweaking subway services, but always found them hard to follow without visual aid. So over the long weekend I decided to build one. It has all the basic features: trains would spawn at their origin, stop at stations, and slow down if it gets too close to another. You can also design custom routes by piecing tracks together.
Have fun, and let me know what you think!

value: Show HN: NYC Subway Simulator and Route Designer

author: HeavenFox


value: adi-io

value:
Hello everyone,
I'm Adi, one of the co-founders of DigitalSPX (https://www.digitalspx.com).
We are building a platform that allows users to convert their stablecoins into ETFs of their choice. Our goal is to create a community-led platform where users can vote on which ETFs they want to see added.
Our smart contracts are deployed on BASE, with an architecture that ensures transparency and security. We are excited to announce the launch of our testnet: users can now buy and sell a testnet version of the Digital SPY ETF, similar to a paper trading account.
Our primary focus is on serving people in underserved regions, making it as simple as possible to exchange USDC for ETFs and vice versa.
We would love to hear your feedback and are happy to answer any questions you may have. If you’re interested, please check us out!
Thank you!

value: Show HN: We Launched Our Testnet (DigitalSPX: ETFs to Tokens)

author: adi-io


value: tonicstark

value:
Hey everyone, I’m an NBA fan and Python dev, and I recently built DeepShot — a machine learning model that predicts NBA game outcomes with about 71% accuracy based on historical stats and rolling performance metrics (EWMA). It features: Real NBA data from Basketball Reference Exponentially Weighted Moving Averages to track momentum Interactive NiceGUI interface with team comparison and predictions Full Python stack and open-source (MIT license) Here’s the GitHub repo: https://github.com/saccofrancesco/deepshot And if you like it, here’s my Buy Me a Coffee: buymeacoffee.com/saccofrancesco
Would love any feedback — especially from folks who’ve built sports models or worked on real-time stat tools. Also open to ideas on where to take this next (player-level modeling? betting advice dashboard?).
Thanks!

value: Show HN: DeepShot – an open-source NBA predictor with ML, EWMA, and live UI

author: tonicstark


value: braden-w

value:
I built Whispering because I believe transcription is too fundamental a tool to be locked behind paywalls. It's a cross-platform desktop and web transcription app that turns speech into text with a keyboard shortcut, among other things.
The app lets you bring your own API key (OpenAI, Groq, etc.) and make direct calls. If you want complete privacy, it also supports local transcription. Either way, your audio never goes through any middleman servers. It's super lightweight (~22MB), built with Svelte 5 and Tauri, and works on Mac, Windows, and Linux.
I've been using it daily for the past few months and just released v7 last night. I spent a considerable amount of time developing a clean architecture that's hopefully educational to read. This is one of the most complex Svelte 5 apps in production, with extensive use of runes and TanStack Query.
I'm happy to answer questions about implementation or how to build desktop apps with this stack!

value: Show HN: Open-source transcription that costs $0.02/hour instead of $30/month

author: braden-w


value:
Hey all, I'm the Founder & Developer at Bad Command AI, and I'm really excited to share this project with you all!
Smackdown on macOS App Store is now available.
Experience markdown like never before. Beautiful themes, native tabs, and blazing fast performance make reading documentation a joy on your Mac.
Supports light and dark themes, and a very special cyberpunk theme (because why not?).
We just pushed out an update today that adds fluid zooming, dynamic fonts with scaling, and a new wide mode function to expand the view for ultrawide and high resolution monitors.
Lots more to come, we want this to be the very best Markdown viewer available on the Mac platform!
Full disclosure, I am the developer of this project.
I really appreciate the Hacker News community and thank you all for any interest you may have in our humble app!

value: Show HN: Smackdown: Markdown Viewer for macOS, Fast, Fluid, and Free


value: Looksmaxxer

value:
It's called Mogg.
What's Inside Mogg?
- Facial Rating & Analysis
Get a personalized assessment with detailed scoring and insights to improve your appearance.
- Height Coach
Estimate your height potential and posture optimization tips that enhance your overall presence.
- Rizz Coach
Practice conversation skills and get feedback in real-time. Test your charm before you take it to the real world.
Special Offer
Subscribe for just $10/month and use code MAXX to get 50% off. This is the lowest price ever offered—don’t miss out.
 Join Thousands
Thousands of users have already leveled up with Mogg. Ready to upgrade your life?

value: Show HN: I Built a Looksmaxxing MVP

author: Looksmaxxer

title: Show HN: I Built a Looksmaxxing MVP


value: bloodmosher

value: ISEVIC stands for Integrated System for Enhancing VIC output and is a cartridge for the C64 that uses the Tang Nano 20K FPGA to monitor the bus and recreate the C64 video for HDMI output. While a tremendous effort has gone into handling all the clever C64 tricks, this should be considered a 1.0 release as there are still some demos and games that exhibit bugs. Everything needed to build one is on the github page.

value: Show HN: Integrated System for Enhancing VIC Output

author: bloodmosher


value:
I’d like to invite you to download and try Boxvy — a productivity app designed to give you quick, easy access to your most important content right from your desktop.
And, if possible, I’d really appreciate your feedback!
Quick Description:
This app is a lightweight yet powerful productivity tool designed for Windows and Mac, transforming your desktop into a dynamic workspace. With Boxvy, users can add customizable content — including notes, timers, shortcuts, any browser content, and more — directly to their screen in the form of widgets, movable bubbles, or minimalist status bar icons.
This intuitive interface allows seamless access to essential content without interrupting your workflow. Whether you're managing tasks, tracking goals, or organizing quick-access tools, Boxvy enhances focus and efficiency through a clean, modern user experience.
You can also watch the promo video on: https://www.youtube.com/watch?v=MsawlyFUDKk

value: Show HN: Boxvy, Boost Desktop Experience, Quick Access to Most Important Content


value: mlivneh

value:
Hi HN,
I’m a teacher and developer who wanted to bridge the gap between great web-based learning content and real classroom use. I built fireClass — a simple wrapper that lets you take any web-based educational tool (games, simulations, quizzes) and instantly run it in a live classroom setting with session management, real-time student data, and AI-powered feedback.
No vendor lock-in, no special integration — just add one line to a config file, and any site becomes “classroom-ready.” It works seamlessly with existing slide decks (PowerPoint, Google Slides) and requires no student accounts or passwords — just a name and a room code.
I’d love feedback, questions, or ideas — especially from teachers, edtech builders, or anyone who’s struggled to connect good content with real-time classroom workflows.
Demo: https://meir.world/fireClass-demo/
Thanks for reading!

value: Show HN: FireClass – Wrap Any Educational Website with Real-Time Classroom Tools