value: Cranot

value:
Hey HN,
I built AgentsKB after watching Claude/Cursor hallucinate Stripe API syntax for the 10th time in a week.
The Problem:
AI agents don't "remember" across sessions. You debug a tricky Next.js issue on Monday. Tuesday, same error, same web search loop, same wasted 30 minutes.
The Solution:
A curated knowledge base with 3,276 verified Q&As across 160 domains (PostgreSQL, Redis, Kafka, TypeScript, AWS, etc.). 99% confidence rating, 50ms query time.
How it works:
- Integrates via MCP (Model Context Protocol) into Claude Desktop/Code
- Agent queries verified answers before guessing
- No more "let me search the web for that" delays
Tech stack:
- MCP native (no plugins to manage)
- Vector similarity search for atomic Q&As
- Covers common pain points: JWT auth, Kubernetes configs, API design patterns, PostgreSQL quirks
Current stats:
- 3,276 Q&As
- 160 domains
- 73% atomic (single-concept answers)
- 99% average authority score
Why I built this:
Every AI coding session wastes time re-teaching the agent things it "learned" yesterday. This gives agents persistent, verified memory.
Try it: [Your URL]
Looking for feedback on:
1. Which domains/libraries should I prioritize next?
2. How do you currently handle agent hallucinations?
3. Interest in self-hosted version for proprietary codebases?

value: Show HN: AgentsKB – 3.3k verified answers to stop agent hallucinations

author: Cranot


value: passioner

value: Powered by Nano Banana Pro with inference, multilingual prompts, and multi-image fusion. Upload photos, enter your edit idea, and generate fresh images fast.

value: Show HN: I Built an AI Image Editor Using Nano Banana Pro

author: passioner


value: Show HN: A 100-Lighthouse-Score Astro blog template


value: nativeforks

value:
MBCompass: A popular modern FOSS Compass and Navigation app without Ads, IAP, or Tracking
New Release: MBCompass v1.1.12
This release and upcoming ones follow the feature roadmap proposed in the v2 design proposal.
Features:
- Shows clear cardinal direction and magnetic north as well as true north.
- Displays magnetic strength in µT.
- Live GPS location tracking on OpenStreetMap.
- Sensor fusion for improved accuracy (accelerometer, magnetometer, gyroscope).
- Light and dark theme support is controlled via Settings.
- Keeps the screen on during navigation.
- Landscape orientation supports
- Runs on Android 5.0+
- No ads, no in-app purchases, no tracking.
Note: This app doesn't use any GMS (Google mobile service framework) or any third-party dependencies, only uses AOSP API, so it can be installed on any degoogled or custom ROM devices
What's new in v1.1.12
True North Support: Easily switch between True North and Magnetic North using the new toggle in Settings.
AMOLED True Dark Theme Added a pure-black AMOLED mode for improved contrast and better battery efficiency on OLED displays.
Heading Status Indicator: A new on-screen indicator now clearly shows whether the compass is currently using True North or Magnetic North.
Fixes & Improvements in v1.1.12
Sensor Status Dialogue Fix: Resolved an issue where the dialogue content was getting cut off on smaller screens.
General UI & Stability Updates: Minor interface refinements and performance improvements for a smoother experience.

value: Show HN: FOSS De-googled Compass and Nav app with live location tracking

author: nativeforks


value:
Hey HN! I'm the creator of PageLock.
I built this because I kept running into situations where I needed to share sensitive URLs (private docs, beta links, etc.) but didn't want to trust a third-party service with the data.
How it works:
- Client-side AES-256-GCM encryption using Web Crypto API
- Your password and original URL are encrypted in the browser before storage
- Zero-knowledge architecture - None can decrypt links without the password - except someone manages to break AES-256 :0
- Pure frontend (React + TypeScript), no backend database
The key insight: by doing encryption client-side, the server never sees your plaintext password or URL. It's architecturally impossible to decrypt without the password.
Use cases I've found helpful:
- Sharing private Google Drive/Dropbox links
- Distributing beta access URLs
- Sending confidential resources to specific people
Tech details:
- Encryption happens entirely in browser via Web Crypto API
- No authentication or user accounts needed
- Encrypted payload stored with URL hash fragment
- Password never transmitted to server
Would love feedback from the community, especially on:
- Security considerations I might have missed
- UX improvements
- Additional features that would be useful
Happy to answer any technical questions! connect w/ me on connect@pagelock.top

value: Show HN: PageLock – Password-protect links with client-side encryption


value:
I built Gempix2, a minimal AI image generation service with a cheap, straightforward API for developers who don’t want to pay OpenAI / Midjourney level pricing.
Why I built this
A lot of devs just need a reliable and inexpensive API to generate:
 • product images
 • marketing visuals
 • anime / portrait styles
 • automation workflow assets (Zapier / n8n / Python scripts)
But most services are either too expensive, rate-limited, or complicated for simple scripting.
So I built a smaller alternative.
What’s different
 • Very cheap per-image (affordable for indie projects + bulk use)
 • Fast generation
 • Simple REST API
 • No watermark
 • No weird rate limits
 • Supports realistic, anime, product, and artistic styles
I built Gempix2, a minimal AI image generation service with a cheap, straightforward API for developers who don’t want to pay OpenAI / Midjourney level pricing.
https://gempix2.us/
(API docs available on the site — if you want I can write a clean Swagger/OpenAPI version.)
Why I built this
A lot of devs just need a reliable and inexpensive API to generate:
 • product images
 • marketing visuals
 • anime / portrait styles
 • automation workflow assets (Zapier / n8n / Python scripts)
But most services are either too expensive, rate-limited, or complicated for simple scripting.
So I built a smaller alternative.
What’s different
 • Very cheap per-image (affordable for indie projects + bulk use)
 • Fast generation
 • Simple REST API
 • No watermark
 • No weird rate limits
 • Supports realistic, anime, product, and artistic styles
I built Gempix2, a minimal AI image generation service with a cheap, straightforward API for developers who don’t want to pay OpenAI / Midjourney level pricing.
https://gempix2.us/
(API docs available on the site — if you want I can write a clean Swagger/OpenAPI version.)
Why I built this
A lot of devs just need a reliable and inexpensive API to generate:
 • product images
 • marketing visuals
 • anime / portrait styles
 • automation workflow assets (Zapier / n8n / Python scripts)
But most services are either too expensive, rate-limited, or complicated for simple scripting.
So I built a smaller alternative.
What’s different
 • Very cheap per-image (affordable for indie projects + bulk use)
 • Fast generation
 • Simple REST API
 • No watermark
 • No weird rate limits
 • Supports realistic, anime, product, and artistic styles

value: Show HN: Gempix2 – A Cheap, Fast AI Image Generation API for Developers


value: Hodlcurator

value:
Hey HN! We’ve built something fun: FreeWave, a lightweight, decentralized music system built on Nostr.
Instead of using traditional apps, FreeWave listens to cryptographically signed Nostr events and turns them into real-time music playback. No accounts. No central servers. Your keys are your music.
Publish a command from your Nostr client, like:
PLAY_SONG: Blinding Lights by The Weeknd
and any FreeWave node will automatically:
Verify the signature (your keys = your music)
Fetch the song
Play it locally
Clean up the file afterward
It works on laptops, phones, Raspberry Pis — basically anything that can run the script.
FreeWave isn’t just a script — it’s a tiny decentralized music protocol. Fork it, improve it, or build cool hardware around it.
Check it out: [GitHub link to FreeWave repo]
Your keys, your music.

value: Show HN: FreeWave – Decentralized music control over Nostr

author: Hodlcurator


value: ihmissuti

value: Show HN: Optimize webpages for SEO and LLM search inside ChatGPT

author: ihmissuti


value: A while ago, I was wondering if I should buy a home. Then I tried to understand how mortgage loan work, and what the interest rate represents.<p>A few hours later, this (static) web app was born. It's a glorified calculator that allows you to answer two questions:<p>- how much interest will I pay in addition to the principal (the amount being borrowed).<p>- Whether I should buy my home or keep renting.

value: Show HN: Understand Mortgage Cash Flows

title: Show HN: Understand Mortgage Cash Flows


value: itake

value:
I've been enjoying building calculators with ChatGPT to help me model various life decisions.
When my friend shared he drinks 1-2 Starbucks Mochas per day, it made me wonder how that impacts his health over the course of the year (or several years).
Drinking 2 mocha's per day adds 45.9 lb (20.8kg) body fat that your body either needs to burn or store per year.

value: Show HN: Get Fat Slowly

author: itake

title: Show HN: Get Fat Slowly


value:
Anthropic's Model Context Protocol (MCP) has made it easy to spin up servers that expose tools and data to LLMs.
A lot of these MCP servers run locally because they need access to your files, shell, browser, etc. The problem: they typically run with the same privileges as your user. If a server is buggy, misconfigured, or prompt-injected, it can do anything you can do: read SSH keys, exfiltrate dotfiles, poke around in private repos, etc.
Our research group is working on this by adding a security manifest (inspired by the Android app manifest) plus a local policy enforcement engine that sandbox MCP servers. You can specify which hosts they can reach, which files/directories they can read/write, and so on, instead of giving them full user-level access.
Code and docs:
https://github.com/orgs/GuardiAgent/repositories
https://www.guardiagent.com
Curious how others are locking down agents/tools today and what you'd want from a system like this.

value: Show HN: GuardiAgent – Sandboxing / permission model for MCP servers


value: messkan

value: Show HN: RAG-chunk – A tool to choose optimal chunk sizes for RAG

author: messkan


value: cwkcwk

value:
Hi HN!
I built CodeSprint because I realized getting good at typing code requires practicing syntax fluency, not just logic. I found myself screwing up on mock interviews not because I didn't know the algorithm, but because I fumbled the syntax. I needed a way to drill "Depth First Search in Python" or "Ring Buffer in C++" until my fingers actually knew the shape of the code.
The Engineering:
Renderer: Uses a heavily customized Monaco Editor instance. I'm using deltaDecorations to paint diffs directly onto the editor model without breaking syntax highlighting, and getScrolledVisiblePosition for a custom, low-latency caret.
Data Pipeline: I didn't want to hardcode snippets. I wrote a custom Bun script (scripts/sync-leetcode.ts) that reverse-engineers the LeetCode GraphQL API to pull real problem snippets, sanitizes them, and normalizes indentation.
Latency: To handle high WPM without UI lag, the typing engine isolates keystroke processing from the main React render cycle where possible.
Repo: https://github.com/cwklurks/codesprint Live Demo: https://codesprints.vercel.app/
I'm a 15-year-old student from Vancouver. Would love feedback on the typing engine feel vs. native VS Code!

value: Show HN: Codesprint – A LeetCode Typing Trainer

author: cwkcwk


value: binsquare

value:
Japan has a whole “rental family / rental friend” industry and I’ve always wondered if there’s a version of that in US without being creepy or trip into the tinder realm.
Kind of silly idea but I wanted to show HN after launching in Seattle to a couple surprising requests.
Happy to answer questions about the approach, tech, and how I’m thinking about safety and ops. Brutal feedback welcome.

value: Show HN: StandbyBro – friends for rent (platonic companionship)

author: binsquare


value: yucelfaruksahan

value: Show HN: Yet another tailwind color palette generator but with AI

author: yucelfaruksahan


value: luqtas

value: Show HN: Waist Level Finder Camera

author: luqtas

title: Show HN: Waist Level Finder Camera


value: Aurelan

value: Show HN: PageStash – Full-page web archival with knowledge graphs

author: Aurelan


value:
I'm 13 and built PrinceJS, but my first benchmarks were wrong. HN helped me fix them:
What I learned:
Was using autocannon (too slow for Bun) instead of oha
Real benchmarks: 21,748 req/s (top 3 among Bun frameworks)
Fixed security issues in JWT/rate limiting
Current status:
Competitive with Elysia/Hono on real benchmarks
Honest about capabilities, no more "fastest" claims
Try it: bun add princejs
GitHub: https://github.com/MatthewTheCoder1218/princejs
Would love feedback on what features to add next!

value: Show HN: PrinceJS – From Wrong Benchmarks to Honest Results (13yo Dev)


value: vvin

value: Show HN: Train a language model in the browser with WebGPU

author: vvin


value: Show HN: Indie World – A 3D world map of indie hackers


value: bscript

value: Lightweight Chrome DevTools extension for capturing, replaying, and editing HTTP requests. No proxy or CA setup needed. Features regex search, Base64/URL/JWT converters (will add more), screenshots, request history, and pinned requests, the extension is ideal for bug bounty hunters, AppSec engineers, and DevSecOps engineers :D

value: Show HN: Rep+: Burp Repeater Inside Chrome DevTools for Bug Bounty and AppSec

author: bscript


value:
Hi HN, I am Vaibhav - a founder based in Bangalore, India.
Most founders build without knowing who their real competitors are or what users are actually asking for right now. We usually search Google, Twitter, Reddit manually and hope to catch signals - but it’s slow and incomplete, hence easy to miss important conversations.. This is exactly what Needle solves.
I built Needle because I kept struggling to answer a basic question while building MoveOnFromYourEx (Ai tool that helps people move on after a breakup): "Where are the people who are already talking about the problem I am solving?"
I spent hours manually searching Reddit, StackOverflow, Quora, Product Hunt, GitHub, etc., trying to find real problem discussions. I opened dozens of tabs, scrolled endlessly, and still missed important threads. It felt random and inefficient.
I also realized something else:
Competitors are not always the big companies.
If you are building a search engine, Google is not your competitor.
The 15 indie projects and GitHub repos that people are actually trying are your competitors — and they are almost invisible until you stumble onto them by accident. I wanted a way to discover those early.
So I built Needle originally as a small internal tool to search multiple platforms at once. It worked better than expected, a few friends asked to try it, and now I am sharing it with HN.
What Needle does:
- Search real conversations across 10 platforms (Reddit, HN, Quora, StackOverflow, GitHub, ProductHunt, YouTube, Tumblr, Pinterest, Mastodon)
- Find users who are actively describing problems and asking for solutions
- Discover competitors mentioned in real conversations, even small ones, and monitor every move they make
- Spot trending problems
- Analyze how well your product or brand is recommended by GPT systems
What is different:
- Streams results in real time instead of waiting for a full search
- Structured view of conversations, sentiment, and sources in one place
- Surfaces long-tail indie competitors and tools people actually mention
- GPT-based analysis on how likely AI tools are to recommend your product category
Try it:
https://useneedle.net
(Requires login)
Looking for feedback on:
- What signals matter most when validating an idea
- Which platforms or workflows are missing
- Whether the competitive discovery approach makes sense
- Concerns around data usage, architecture, limits, etc.
- Happy to answer questions and share more details in the comments.
Thanks,
Vaibhav (iamvs2002)

value: Show HN: Needle – Find users, track competitors, and spot market opportunities


value: blixt

value:
I started this package about a year ago because most existing packages were overly complex and I just wanted the basic LLM functionality (text, tools, streaming, images, caching, etc) compatible with all the major APIs (OpenAI Chat Completions + Responses, Anthropic, Google Studio + Vertex). It also works with any other vendor that provides a compatible API.
Along this journey we found a ton of quirks and differences between vendors, and tried to make switching between them on the fly feel as smooth as possible (e.g. not having to worry exactly how to include an image in a tool result).
Sharing it now because it's reaching some form of maturity after a year, but because the goal has been to keep it minimal, it only has the bare minimum we needed – I'd love to hear what people think is missing!

value: Show HN: Use any LLM in Go with stable, minimal API

author: blixt


value: hgarg

value: I built an Email client style viewer for Epstein emails disclosed by the US house of congress

value: Show HN: Jeffrey Epstein's Inbox

author: hgarg

title: Show HN: Jeffrey Epstein's Inbox


value:
I built a once-a-day quiz based on US naming data back to 1880 to share my (potentially unhealthy) obsession with everything related to names.
Before my kids were born, my wife and I went through an over-the-top name evaluation process using data from the US Social Security Administration. I recently wrote about that project here:
https://three-things.medium.com/the-most-thorough-way-to-nam...
After revisiting the topic, I realized I could do a much better job of data analysis now than I did all those years ago. So I started doing some recreational SQL to answer random questions about history, gender split, and spelling (Bryan vs. Brien vs. Brian).
The results were really interesting! I figured the best way to share this information was by making it interactive, so I spent a few weeks whipping up this game.
No sign-up, no ads, no stored PII. Just a fun little distraction that hopefully makes you say “Huh, I didn’t expect that.”

value: Show HN: NameGrid – a daily quiz game based on 150 years of US naming data


value: femtobusa

value:
hi hn,
i'm excited to share mailqor, a lightweight chrome extension that integrates directly into your gmail and outlook inbox. it adds a simple trust badge next to each email sender, helping you quickly identify if the sender is safe, unverified, or suspicious. this aims to reduce the risk of phishing and email scams by making it easier to spot potentially harmful emails at a glance.
the extension is free to use and easy to install. i'd love to get your feedback and hear any suggestions for improvement.
you can check it out here: https://chromewebstore.google.com/detail/mailqor-anti-phishi...
thanks for your time and hope you find it useful!

value: Show HN: Mailqor – trust badge to spot safe vs. suspicious email senders

author: femtobusa


value: skarlso

value:
Hello good folks!
So... TL;DR: I find presentations boring. I find Choose your own adventure style books not boring. I married the two. Now, you can have presentations where the people you present two have the ability to choose how your presentation proceeds! And you can construct your presentation using plain markdown, start a server, your audience opens the `/voter` link you open the `/presenter` link and start your presentation. Whenever there is a question, they will choose and the presentation proceeds according to the choice.
Longer version:
In the years I partook on presentations I always liked the ones that are more interactive. Not in a I ask questions and then wait uncomfortably for people to shout out something, no. In a way where I, as a viewer, got something to do! Makes me more interested in the presentation as well, and I'll be learning and remembering things more as well.
I also like choose your own adventure type of books. So I wondered, how could I make these two come together? So I wrote this little tool called adventure-voter. Not a very good name, but meh... The point is that you'll have a backend and a frontend to deal with votes and deal with following forks in your presentation. Going back from a fork if the fork ended up in death or a failed route. ( you procastinated, your backend didn't start, you server didn't come up, etc whatever makes sense as an end in your presentation ). And then you can explore a different route. Imagine, you are presenting something about Kubernetes. And one of the questions is, okay you are now bringing up etcd. How do you configure it? Do you... and the vote begins.
This makes the presentation a little bit more enjoyable I think. Also, the framework is super easy. You have your presentation in Markdown and the frontend is a lightweight parser with tailwind that does things and makes it look relatively nice. ( I'm not a frontend dev, sorry ). And you can link together steps and stories with `next: slide-1b` or whatever.
Granted, you'd have to work a bit more to get a presentation that makes sense, but honestly, I think it will make for a very interesting talk. Something I'm aiming to do on the next KubeCon in Atlanta. I'm going to be using this framework to present something. ( If I get in. :)) )
Lastely, I want the presentation to be enjoyable and not boring. :) And that's my main goal. On KubeCon you sit through presentation after presentation after presentation and hopefully this one will be ( if I get accepted ) something that you enjoy and don't fall asleep on. :)
I hope this is useful. Enjoy folks. :)

value: Show HN: Choose your own adventure style Presentation

author: skarlso


value: Show HN: Heliocrafts – The AI That Builds Real Software


value: artursapek

value: Show HN: Revise

author: artursapek

title: Show HN: Revise


value:
Instead of going the tags + categories route, I used the vertex api multimodalembedding@001 model.
How it works
When a pin is to be saved, fow's server sends a client-side embed token, with permissions to call the vertex-api directly (through the impersonated access token flow), this returns a f32 512 dim vector.
I store this in a usearch vector db on my $15 VPS.
Usearch doesn't have runtime disk persistence, so I had to write a WAL wrapper around it.
What you can do
The perks of multi-modality is pretty fun: you can currently search for web design patterns via images and text, in combination with other filters - colors, font(s), domain.
Some examples to try:
https://fontofweb.com/search/pins?q=elegant+serif+blog+with+...
single fonts, pairings, or 2+ combos, e.g
https://fontofweb.com/search/pins?family_id=109
https://fontofweb.com/search/pins?q=&family_id=109&family_id...
color search/sorting (done in perceptual CIELAB space not RGB)
https://fontofweb.com/search/pins?q=&color=%23ff0000
domain search (filter by site, e.g. https://fontofweb.com/search/pins?domain=apple.com, https://fontofweb.com/search/pins?domain=blender.org)
Appreciate your thoughts, scathe me, praise me, don't hold back, thanks for you time :)

value: Show HN: Font of Web: Search Web Design Patterns via Multimodal Embeddings


value: articsputnik

value: Show HN: Track cloud costs and revenue across AWS, GCP, and Stripe

author: articsputnik


value: Show HN: Reasoning Orchestration with Causa


value: frenchriera

value:
I built Cossistant as a lightweight, open-source alternative to Intercom/Zendesk for NextJS/React devs. You can embed it with a simple NPM command and under 10 lines of code.
The goal was so far to be a very very good human to human support platform, the next goal is to enable AI agents to auto-handle 80% of queries (train on your docs and knowledge) and eventually escalate to humans when needed.
Everything is customizable with Tailwind or your custom React components.
Support tools are bloated, pricey and never FEEL / LOOK like your product, this is why it's being shipped as part of your stack and not coming from someone else's.
It's already generally available!
Feedback/debates are welcome, what's missing?

value: Show HN: Cossistant – open-source and open components support widget for React

author: frenchriera


value: Show HN: Wozz – Find Kubernetes waste without installing agents Bash script MIT


value: Caelrith

value:
Hello HN,
I built a CLI tool called LogLens to make querying structured logs (JSON, Logfmt, Nginx) as fast and ergonomic as grep, but with SQL-like capabilities.
To make it easier to try without installing anything, I compiled the core Rust engine to WebAssembly and built a playground.
The Problem: I often found myself needing to filter complex JSON logs over SSH. grep fails at structure ("find errors where latency > 500"), and jq syntax can be hard to type correctly under pressure.
The Solution: LogLens uses a natural query syntax. You can type things like: level is "error" and duration_ms > 500
Key features of the Playground:

    100% Client-Side: Your logs are parsed in memory via WASM. No data is ever sent to a server.

    Structured Parsing: Automatically detects JSON, Logfmt, and common web server formats.

    Range Queries: Just added support for ranges like status between 200..299 or ts between "10m ago".."now".

    Unstructured Search: You can treat logs as raw text too: text contains "timeout".

The core engine is open source (MIT) and written in Rust.
Playground: https://getloglens.com/playground Repo: https://github.com/Caelrith/loglens-core
I’d love to hear your feedback on the query syntax and performance!

value: Show HN: LogLens Playground – Query structured logs in browser(WASM,client-side)

author: Caelrith


value: justindmassey

value:
I built Tree Editor, a visual editor for structured data.
It lets you define types (::Type), apply them to nodes (.Type), and the editor keeps everything consistent automatically. Changing a type updates all matching nodes instantly.
It also supports list types, a live preview pane, and interactive widgets (tables, headers, links, text areas, tabs). Everything runs locally in the browser, with no dependencies.
It’s useful for AI agent schemas, game data, configs, knowledge trees, and anything hierarchical.
Repo: https://github.com/justindmassey/tree-editor
Would love feedback on the type system, UI, and potential use cases.

value: Show HN: Tree Editor – A Visual Structured Data Editor with Type Inheritance

author: justindmassey


value:
I made a small CLI tool called "que". It’s meant for those moments when you're SSH’d into a box or staring at a CI failure and just want to pipe the output into an LLM and get “here’s what broke + how to fix it.”
Nice and simple to install and use.

value: Show HN: A tiny CLI that pipes logs/errors to an LLM for instant debugging


value: stanislavkim

value:
OriGen is a deterministic workflow compiler.
It takes declarative Maps (YAML) and produces a backend-neutral
Intermediate Representation (Route). Guides then translate the IR
into native execution artifacts: Kubernetes Jobs, CI configs, or
local container scripts.
The key properties:
• Deterministic planning (no execution during compilation)
• Digest-pinned toolchains (Navigators)
• Immutable resource bundles (Backpacks)
• Planning/execution separation
• Backend neutrality (K8s first, others follow)
• Zero-trust emerges as architecture (no hidden behavior)
• Automatic Digital Provenance (ADP) falls out of determinism
OriGen does *not* run workflows. It compiles them.
The goal is to provide a stable planning layer above CI/CD,
orchestrators, and container engines: one Map → many backends.
Documentation (Primer, Architecture, Zero-Trust, ADP):
https://origen-hub.github.io/origen-core-public/
This release is documentation-only (v0.0.1). IR and schema
prototypes are next. Early architectural feedback is welcome.

value: Show HN: OriGen – A Deterministic Workflow Compiler (Maps → IR → CI/K8s)

author: stanislavkim


value: ChrisbyMe

value:
I've recently discovered Edward Tufte's work  and I really enjoy his layouts and typography.
I came across the Image Quilt idea and want to integrate it into my blogposts as a header image, but the extension is broken + I don't want to manually layout each one, so I made a tool to help me generate them!
Going to work on modifying the layout with sliders when I have the time for things like jaggedness, but would love any feedback. :)

value: Show HN: A Tufte-Inspired Image Quilt Tool

author: ChrisbyMe


value: jdironman

value: Just a simple site that I spun up this morning that is pretty fun to play around with. You Give it a phrase / scene or feeling and it returns 3 colors.

value: Show HN: An AI Assisted Color Picker

author: jdironman

title: Show HN: An AI Assisted Color Picker


value: a-fadil

value:
Hi HN, creator of Wealthfolio here.
A year ago, I posted the first version. Since then, the app has matured significantly with two major updates:
1. Multi-platform Support:
Now available on Mobile (iOS), Desktop (macOS, Windows, Linux), and as a Self-hosted Docker image.
(Android coming soon).
2. Addons System:
We added explicit support for extensions so you can hack around, vibe code your own integrations, and customize the app to fit your needs.
The core philosophy remains the same: Always private, transparent, and open source.

value: Show HN: Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker

author: a-fadil


value: davidcann

value:
I built Universymbols to extend your app’s icon set. I used to hunt for a passable icon from a different set or try to restyle one by hand, but the AI image models are now good enough to do this (with a bunch of tooling to get them to behave).
Upload an icon with the subject you want and restyle it into a target icon set, like SF Symbols, Material Symbols, Phosphor, Unicons, Lucide, and a bunch of others. After about 2 minutes, you get up to six candidate icons in SVG.
Get one free icon by logging in with your GitHub account (no data collection, just to reduce bots). Pricing beyond that is per icon (no subscription) because the AI model costs are significant.
Under the hood, it’s a 15 step pipeline including 8 steps calling AI models (plus retry on failure by an AI judge) and some traditional image processing. The raw image generation in the middle of the pipeline is both Google’s Nano Banana Pro and OpenAI’s GPT Image 1. I’ve been sitting on the project for a couple of months because gpt-image-1 had too many failures, but Nano Banana Pro fills in most of those gaps, so it runs both models simultaneously. None of the cheaper models had useful results.
You can try it here: https://universymbols.com
- Would you choose more niche/interesting icon sets, if you were sure that you could add any icon your UI needs in the future?
- How do you choose an icon set for your apps currently?
- Should I implement custom/private styles?

value: Show HN: Universymbols – Restyle any icon with Nano Banana Pro & GPT Image 1

author: davidcann


value: fraserphysics

value:
This is a draft of a second edition of this book from SIAM
https://epubs.siam.org/doi/book/10.1137/1.9780898717747?mobi...
There are three things to show:
1. A pdf of the draft: https://www.fraserphysics.com/book.pdf
2. The hmm project which provides code for state-space models:
https://gitlab.com/fraserphysics/hmm with documentation at
https://fraserphysics.gitlab.io/hmm/
3. The hmmds project which provides code for using state-space models
to address some examples: https://gitlab.com/fraserphysics/hmmds with
doumentation at https://fraserphysics.gitlab.io/hmmds/ The default
target for hmmds is to build the book.  On my home system it takes
about 10 hours to build the book.
I would be grateful for comments or suggestions on any aspect of any
of the three things.
I am particularly interested in help with the following:
1. I use NixOS for developing.  I've documented progress on making the
code useful in other enviroments at
https://fraserphysics.gitlab.io/hmmds/getting_started.html Please let
me know if you are able to use the code elsewhere.
2. In the draft of the book, I have an analysis of the convergence
properties of the EM algorithm spread between Section 2.5 "The EM
algorithm" on page 43 and Appendix B "EM Convergence Rate" on page
137.  The analysis is different from anything I've seen published.  I
would like feedback with corrections and or citations.

value: Show HN: Markov Models and Dynamical Systems – Software and Book

author: fraserphysics


value: kbyatnal

value:
I built OCR Arena as a free playground for the community to compare leading foundation VLMs and open-source OCR models side-by-side.
Upload any doc, measure accuracy, and (optionally) vote for the models on a public leaderboard.
It currently has Gemini 3, dots.ocr, DeepSeek, GPT5, olmOCR 2, Qwen, and a few others. If there's any others you'd like included, let me know!

value: Show HN: OCR Arena – A playground for OCR models

author: kbyatnal


value: dogacel

value: Show HN: DeepSeek-OCR with MPS and CPU Support

author: dogacel


value: Show HN:Nkv – a tiny key-value store with pub/sub and keyspaces for shared state


value: primaprashant

value:
Use hns, a speech-to-text CLI tool to transcribe your voice from your microphone directly to clipboard. Integrate hns with Claude Code, Ollama, LLM, and more CLI tools for powerful workflows.
hns transcribes your voice 100% locally using faster-whisper. The whisper model is downloaded automatically on first run and after that, hns can be used completely offline. After transcription, the text is displayed in the terminal (written to stdout) as well as automatically copied to your clipboard, ready to be pasted anywhere with Ctrl+V or Cmd+V.
GitHub: https://github.com/primaprashant/hns/

value: Show HN: Transcribe Your Voice in Terminal Locally

author: primaprashant


value: robot-wrangler

value:
This project is a strange labor of love, practically guaranteed to inspire horror and delight.  It's also tough to summarize. Partly it's practical and involves familiar tools, but part of it is also a new programming language with esolang roots.  I'll start with the practical and move towards the peculiar.
The one-sentence summary: compose.mk brings docker-fluency, polyglots, and a capable standard library to Makefiles.  A more in-depth elevator pitch from the main landing page is below, and some related links at the end in footnotes 1-5.
> Meet compose.mk, a tool / library / framework for Makefile-based automation, scripting, and lightweight orchestration. Native support for docker, docker-compose, workflow primitives, JSON IO, TUI elements, and more, all provided by a single file with no dependencies beyond what's already in your development environment. Typical use-cases include general project automation, especially decoupling your CI/CD from different kinds of platform lock-in.  Other superpowers include the ability to quickly incorporate foreign tools and foreign code as first-class objects, which provides unique and powerful capabilities for quickly assembling console applications, systems prototyping, and component-oriented design experiments in general. Definitely not the Makefiles of your ancestors.
Here's where it starts to get more weird and fun.  Building the ideal environment for zero-dependency automation and pesky "glue code" moves in a certain direction.  So it happens that compose.mk moonlights as an interpreter / compiler / packaging tool for a new kind of programming language.  CMK-lang (or just CMK) is multiparadigm with diverse influences, from functional to concatenative, ultimately specializing in things like extensibility, interoperability, DAGs, and dispatch.  CMK is a superset of Makefile that can be transpiled to vanilla Makefile. And it is what is known as a matrioshka language.  Paraphrasing the definition from esolangs-wiki:
> A matrioshka language is formed by bundling one or more meta-languages with one or more language descriptions. They can be identified by their program forms, which have multiple, distinct 'phases' with different syntactic and semantic rules. There are often two phases; the first gives a set of rules, and the second provides objects on which those rules are to be applied.
In CMK-lang, matrioshka "objects" are things like container-runtimes or foreign interpreters, and "rules" are DAGs in the form of tasks, task-groups, or foreign code.  For those interested in matrioshkas and topics in PLT, I suggest the alternate landing pages at footnotes 6-9.
Love it or hate it, I think you'll agree that compose.mk is easily the biggest, baddest, most highly powered mutant Makefile the world has ever seen.  If it helps you can think of CMK-lang as a PoC that's waiting for another back-end implementation ;)  Playing around with it has convinced me though that the gap is real, and the world needs containers-first matrioshka languages that work locally and aren't tightly coupled to bulky remote platforms or infrastructure.  It also needs languages that are capable of aggressively reusing and recombining existing code and existing tools.
[1]: https://robot-wranglers.github.io/compose.mk/standard-lib
[2]: https://robot-wranglers.github.io/compose.mk/bridge
[3]: https://robot-wranglers.github.io/compose.mk/container-dispa...
[4]: https://robot-wranglers.github.io/compose.mk/demos/polyglots
[5]: https://robot-wranglers.github.io/compose.mk/json
[6]: https://robot-wranglers.github.io/compose.mk/matrioshka
[7]: https://robot-wranglers.github.io/compose.mk/language
[8]: https://robot-wranglers.github.io/compose.mk/compiler
[9]: https://robot-wranglers.github.io/compose.mk/demos/packaging

value: Show HN: Makefiles, Metalanguages, and Matrioshka Automata

author: robot-wrangler


value: Show HN: NanoBananaPro–AI image gen built with Next.js 15, Cloudflare Workers


value: michaelmilst

value: I recently started learning guitar and have been working through basic chords and scales, but I don't want to follow a strict lesson plan.<p>You can ask for specific chords, but I like asking for vague styles or feelings, like "Show me how to play something chill and dreamy"

value: Show HN: I built a generative UI app to teach myself guitar

author: michaelmilst


value: lexokoh

value:
Hi HN, creator of Echos here.
Built this because I was tired of rebuilding orchestrators and database agents for every multi-agent project.
Echos gives you pre-built agent "services" (database, API, search, analysis, code gen) that you compose like AWS services but in YAML. It includes SQL guardrails, SSRF protection, cost tracking, and time-travel debugging.
Just added AWS Bedrock support for compliance-focused teams.
Try it out: https://echoshq.com
GitHub: https://github.com/treadiehq/echos

value: Show HN: Echos – open-source orchestration for agents

author: lexokoh


value: ardmiller

value: Show HN: Optimizing JIT Compiler for Code Mode MCP

author: ardmiller


value: notedis

value:
I built Notedis - a visual feedback widget that captures annotated screenshots plus the technical context I need to debug (browser info, device details, screen resolution). Clients don't need to login or learn anything new. They click the widget, draw on what's wrong, and I can fix things much quicker with context.
$20/month flat. Unlimited sites, unlimited feedback. No seats, no tiers.
I kept it deliberately simple - three components: widget, dashboard, email replies. No Slack integrations, no AI features, no roadmap to enterprise. Just the core workflow that actually saves me time.
Try out a free trial and let me know how I can improve it please!

value: Show HN: Notedis a Feedback Widget for Freelancers Tired of Enterprise Pricing

author: notedis


value: andydotxyz

value:
Desktop with a couple of embedded apps. Virtual desktops, screensaver and more.
Proof of concept experiment right now - any suggestions of what to add?

value: Show HN: A full desktop implementation in the browser

author: andydotxyz


value: Show HN: Macdev – Nix-like environment isolation using Homebrew


value: dschofie

value:
Hi HN,
I open-sourced this configuration generator because we wanted to have a version-controlled way to generate configuration files for our cell-based deployment.
You can generate config files for any number of cells based on any schema. You can also nest your configuration to include different things like AWS account then cell name.
Please let me know what you think!

value: Show HN: ConfigTailor – A cell based config file generator

author: dschofie


value: eigenvalue

value:
I sort of made this as a joke, but it has an interesting, high-performance client-side architecture. You can see Claude’s take on the architecture here:
https://x.com/doodlestein/status/1991766330656358737?s=46

value: Show HN: EES, the Epstein Email Search System

author: eigenvalue


value: nextguard

value:
I built Hirosend because I needed a fast and secure way to send files to clients without asking them to create accounts or navigate permission screens. Dropbox/Drive were too heavy for one-off transfers, WeTransfer felt clunky for quick sends, and I really missed the simplicity Firefox Send had before it shut down.
Hirosend lets you upload a file, set expiration, add an optional password, or generate a one-time magic link. Recipients just click and download — no signup required on their side.
Files are encrypted before being stored and automatically deleted after expiration. There are basic access analytics so you know when a link was opened.
I’d love feedback on whether this solves a pain point for you, and what features would you like to see added.

value: Show HN: Hirosend – Simple Encrypted File Sharing

author: nextguard


value: yutasato

value: Show HN: City2Graph – Python Open Source for Geospatial Graph Neural Networks

author: yutasato


value: Show HN: A Minimalistic Portfolio

title: Show HN: A Minimalistic Portfolio


value:
I’ve been trying to read PDFs and articles while rocking my baby boy to sleep in front of our iMac. Not the easiest combination, and yes, you could argue I shouldn’t multitask, but you know how it is. I couldn’t help myself and ended up building an app to make it easier.
It’s called ScrollPods. You tilt your head gently up or down while wearing AirPods, and your Mac scrolls intuitively. It works in web browsers, PDFs, documents, social media, spreadsheets, basically anywhere you normally scroll up and down. I am still surprised at how intuitive it feels.<p>Key Points:<p>- App size is 3 MB
- Uses minimal CPU (<5 percent) and battery when active
- Low RAM usage (around 50–70 MB)
- Works offline, fully on device
- System-wide scrolling in any app
- Supports AirPods 3rd gen+, AirPods Pro, AirPods Max and Beats Fit Pro†
- Settings page for fine-tuning to your personal needs
- Supports English, French and German
- Automatic 7 day free trial with no sign-up, no login, no email
- If you like it you buy it for $ 4.99<p>* When running in the background with just the menu bar icon, this was for a M1 iMac.
† I think more Beats models might work, but Apple doesn’t publish a full compatibility list. If you’re unsure, just try it out during the 7 day trial. The app will tell you right away if your headphones are unsupported.

value: Show HN: ScrollPods – Scroll hands-free on your Mac with AirPods


value: bodhigephardt

value: Show HN: A collection of simple AI apps that make your life better

author: bodhigephardt


value: TonySyrup

value:
Hello there HN,
I'm Tony, software developer for the past 16 years.
Since covid I've been working remotely (and loving it) but so many of my friends/family have been forced to go back to the office.
I've told them to go find another remote job but when I had a look at what's out there the visibility on who you're actually applying to is crap on all of the job boards.
So I built a job board that only has remote jobs from companies that have a high rating on Greenhouse (3.5+ stars). This way you never have to worry about the workplace you're applying to.
Hope it helps others find good jobs too.
Tony

value: Show HN: 3400 remote tech jobs from companies with a 3.5 rating on Greenhouse

author: TonySyrup


value: theblackngel

value: Show HN: Ìkọkúkọ 0.1.0 – Reactive Form Validation for Compose Multiplatform

author: theblackngel


value: gdesplin

value:
I am a dad and have a hard time keeping track of who's turn it is, so I built this simple app to help, and you can try it out and use it for free!
You can create a list, add turns (in order), and advance the turns in sequential or random order. That is pretty much it.
I guess a to-do list or something could do something similar, but this is designed with 'taking turns' in mind.
It's a PWA, so you can "Add to Homescreen" rather than download an app from the app store. Or use it in your browser.
I've been using it every day for a bit now, thought I'd share.

value: Show HN: Even Turns, track your families turns

author: gdesplin


value: tcodeking

value:
Hey HN!
I have posted here a few times, Big update today!
I’ve been building an open-source AI data-firewall designed to sit between your databases and LLMs, preventing sensitive data from leaking during AI-powered analytics or natural-language SQL generation.
Today I’m releasing a major update, and I’d love feedback. https://github.com/tyoung1996/guardrail-layer

value: Show HN: Guardrail Layer, Open-Source AI Data Firewall, Role-Based Redaction

author: tcodeking


value: itayd

value: Show HN: Gocat – URL shortener using Google Sheets

author: itayd


value: benzguo

value: Show HN: Zo, a Friendly Personal Server

author: benzguo

title: Show HN: Zo, a Friendly Personal Server


value:
I built Nemorize to solve my own frustration with flashcard apps: spending hours creating cards instead of actually learning.
What it does:
Describe what you want to learn (e.g., "Norwegian A1 vocabulary" or "React hooks") and AI generates a complete lesson with 15-25 questions
Spaced repetition system tracks your progress across 9 mastery levels (Apprentice → Burned)
AI evaluates open-ended answers for language courses and conceptual questions
Works on mobile and desktop
Tech stack:
F# / ASP.NET Core backend
Vanilla JS frontend and lit
SQLite database
Claude for AI generation and evaluation
What makes it different:
AI generates both the lesson content AND the flashcards, not just one or the other
Stricter evaluation at higher mastery levels (Guru+ requires correct spelling/grammar for language courses)
No subscription wall for core features
Try it: https://nemorize.com
I'd love feedback on the learning experience and any rough edges you find.

value: Show HN: Nemorize – AI-powered spaced repetition for learning anything


value: rjameshsv

value:
This is an Azure-hosted SaaS that lets anyone assess their cloud config security via a read-only account (IAM/service principal). We use cloud native APIs and AI models to produce actionable reports. Azure SWA and containerized Pythonic backend.
Please sign in with your github. I think making one demo user for all of HN is a bad idea because people could see your scan results.
Looking forward to feedback, thanks :)
ETA- this product has been applied to YC winter 2026. Please be patient with logging in, the API is a little slow still.

value: Show HN: VulNinja – multi cloud security made easy

author: rjameshsv


value: Show HN:emma019 Real-Time AI-Powered Texas Hold'em in Python and Flask


value: jdironman

value:
Hi HN!
I've been trying to replace apps I use recently with my own version + export and import with data being completely local the device / browser (lost on cache clear!).This is one of them. Its used for tracking things you want to quit in a somewhat gamified way. You can unlock badges for staying quit longer but also handles adding lapses or 'occurrences'. Hope you like it. You dont even have to host it, you can just download the repo and open the index.html instead.
So far I have about 4 of these. 2 private and 2 public
## Private:
- Budget Tracker - integrated with plaid for actual banking data...working out good security hygiene on this one first before releasing the source.
- Job Tracker - Web UI / Self hosted. Integrates with your preferred LLM, CRUD for adding jobs via link (only tested with dice). It scans and then LLMs compare it against your uploaded resume and gives the job a scoring, generates a short introduction to the company who posted it / what they do, generates talking points for interviews and things you should highlight, and generates a cover letter tailored to the position / company. *Edit: Also local only until I figure work out the security hygiene and some obvious UX issues.
## Public:
- Habit tracker - This one.
- Fit Tracker - Very similar in appearance to habit tracker. Allows you to easily log workouts, re-use exercises. I get frustrated with fitness apps that do too much etc. I basically just want a simple way to log what exercises, reps, weight, minutes I did and that be it. Stored for later analysis. Though the page does allow for some analysis as it is. You can find this one here:
https://github.com/justind-dev/fit-tracker
Anyways, enjoy!

value: Show HN: Habit-Tracker a simple self hosted, local only, habit tracker

author: jdironman


value: ruben-davia

value:
Hi HN,
We’re Ruben, Afnan, and Theo. A couple of days ago we released the early repo for Davia and were surprised by how much feedback came in right away.
We decided to turn it into a full open-source package you can run locally.
Davia is designed for coding agents to generate an editable internal wiki for your project.
It focuses on producing high-level internal documentation: the kind you often need to share with non-technical teammates or engineers onboarding onto a codebase. Writing this kind of documentation takes forever, diagrams are often missing, and most tools don’t let you edit everything locally or integrate smoothly with your workflow.
Davia is open source. It produces an editable workspace:
– Text lives in a Notion-like editor
– Diagrams live on editable whiteboards
– Everything runs locally and can be modified either in your IDE or in the workspace
One thing people found especially interesting is that you can delegate the documentation to your IDE’s AI agent. Davia handles all the heavy lifting. Your agent just writes the docs, and Davia turns them into structured pages, diagrams, and visuals.
The project is still early, and we’d love feedback, ideas, and examples of how you handle internal documentation today.
GitHub: https://github.com/davialabs/davia
Discord: https://discord.gg/A79mEzP8me

value: Show HN: Open-Source Visual Wiki Your Coding Agent Writes for You

author: ruben-davia


value: rcarmo

value: Yes, it's AI. But it's been useful to me to pare down the number of RSS items I read through every day into "stackable" "bulletins" that provide me with enough context to keep abreast of the news, and it's also grown out of a Node-RED flow into a full blown automated publisher, so... might be useful to someone else.

value: Show HN: RSS/Atom Feed Summarizer

author: rcarmo

title: Show HN: RSS/Atom Feed Summarizer


value: lunava

value:
Hi everyone! I’d like to share a web app I built called WatchPennies. Initially what started as a simple question to find the disparity of costs between locations turned into a full project. It helps you compare the annual cost-of-living in different US counties side-by-side.
Unlike typical COL calculators that only compare two cities, this map lets you select as many counties as you want and see a breakdown of costs for: housing, food, transportation, healthcare, taxes, all updated live on the map. You can click counties or search by name, and the comparison chart updates instantly.
The data comes from the Economic Policy Institute’s 2025 Family Budget dataset.
Feedback is appreciated! Thank you!

value: Show HN: WatchPennies: An Interactive Map to Compare Cost of Living by US County

author: lunava


value: quadrophenia

value:
I made a Terminal UI for OpenSnitch[1], an interactive application firewall for Linux inspired by Little Snitch. I’ve always wanted to create a TUI and found the perfect excuse to make this for usage on one of my headless servers.
I wrote this in Rust to force myself to learn more, viz. async features. Super open to feedback and contributions!
[1] https://github.com/evilsocket/opensnitch

value: Show HN: I made a Rust Terminal UI for OpenSnitch, a Linux application firewall

author: quadrophenia


value: modinfo

value: Show HN: A minimalist maze exploration game with level editor

author: modinfo


value: chelm

value: Show HN: Free SEO Image Generator WordPress Plugin – Rule Based and Zero AI

author: chelm


value: struy

value: Simply allow camera access when prompted, position your face in the frame, and click the capture button. MoodLens will analyze your facial expression and provide insights about your emotional state.

value: Show HN: MoodLens – Provide insights about your emotional state

author: struy


value: shadowjones

value:
I wanted to find a product idea to build. "Build things people want," right? So I thought, why not literally find people saying what they want?
I wrote a script to collect thousands of Reddit posts where people are looking for a solution or complaining about a problem. Then I used GPT to filter out the noise and score each one based on how viable the idea seemed. Threw together a simple search interface so anyone can explore them.
I was planning to build a more advanced paid version of this, but figured I'd share the raw version first to see if it's actually useful to anyone.

value: Show HN: 12K Reddit posts scraped and AI-scored for startup ideas

author: shadowjones


value: CarlosArthurr

value:
Look, I know. There are like 47 of these apps already. I'm aware.
But here's the thing - I kept trying them and they all took forever (30+ min processing), need to be a prompt master or charged $200 for 5 photos. So I built one that does it in 60 seconds from any selfie.
The pitch is simple: LinkedIn, Tinder, Bumble, Hinge, your mom's WhatsApp profile pic - whatever. Upload a selfie, pick a style, done. Let people go wild with it.
Tech stuff: Swift app, nano-banana, no face training required. It's style transfer that keeps you looking like yourself, just better lit.
Free trial, no credit card. Built it solo from Braga, Portugal.
Happy to talk about the tech or explain why entering the most saturated App Store category seemed like a good idea at the time.

value: Show HN: I made yet another AI headshot app because the world needed one more

author: CarlosArthurr


value: mortezaalizadeh

value:
Hi HN
I have been working on Skedular a platform that helps organizations councils co working spaces and local businesses manage bookings shared spaces and multi location operations in a simple modern way
What Skedular does

  - Manage rooms desks studios sports facilities meeting spaces and any kind of bookable asset
  - Handle multi location multi team scenarios
  - Provide public booking pages for venues
  - Offer a clean dashboard for operators to manage availability payments customers and schedules
  - API first design for easy integration with existing systems
  - Built with modern tooling including Nextjs NET backend PostGIS and Kafka events

Why I built it
Most booking platforms are either too simple or too enterprise heavy Skedular is meant to sit in the middle powerful enough for councils or large organisations but simple enough for a local venue owner to use without training.
I am currently onboarding early users and would love feedback from this community especially around UX data modelling and scaling patterns.
Links

  - Public website https://getskedular.com
  - App website https://skedular.app

Looking for feedback
I would appreciate thoughts on the overall concept any edge cases I might be missing suggestions for UI and UX improvements and pain points you have experienced in managing bookings or shared resources
Thanks for taking a look
Morteza

value: Show HN: Skedular, a Smart Booking and Workspace Management Platform

author: mortezaalizadeh


value: Nano Banana Pro delivers state-of-the-art image generation with perfect text rendering, 4K resolution, and unprecedented creative control.

value: Show HN: Nano Banana Pro – AI image generation and editing platform


value: FlorinDobinciuc

value:
I needed a super simple way to track billable hours, just Start when working and Stop when done. Existing tools felt heavy.
So I built a tiny desktop app (macOS + Windows):
- start/stop only
- project/client
- data stored locally
- free & open source
Demo: https://drive.google.com/file/d/19ijgUzdIawszL2qVmWDaF3lkQvg...
Code: https://github.com/HustleCoding/time-tracker
Feedback welcome, especially what would make it useful for real freelance work.

value: Show HN: Minimal Start/Stop app for tracking billable hours (Tauri)

author: FlorinDobinciuc


value: Fsen

value: Show HN: PokeSuite – Pokémon TCG pack simulator and competitive team builder

author: Fsen


value: thantsintoe

value: Show HN: LexiForge – Auto-generate vocabulary flashcards from Kindle lookups

author: thantsintoe


value: jsmolka

value: I found the price of indoor bike software like TrainerRoad and Zwift too high and decided to build something myself (also just for fun). Chromium browsers implement the Web Bluetooth API, which allows control over smart trainers and heart rate monitors. I added default workouts based on scientific studies and a simple editor for custom workouts. I've been using it for the past two years without problems and hope somebody else might find it useful.

value: Show HN: Workin, a web app to control smart trainers

author: jsmolka


value:
Problem: Companies want to use AI internally but can’t send sensitive data to cloud LLMs or afford the time and complexity of wiring together their own on-prem stack.
Solution: Alera gives you a browser-based workflow that generates a complete private AI deployment package you can run inside your own environment.
Why this approach: Instead of offering another YAML template or model wrapper, Alera builds the entire micro-infrastructure for you, including model serving, vector DB, security policies, and runtime wiring. You get a functioning private AI environment instantly.
MVP: The first version lets you pick an open-source model, choose use cases like Code Copilot or Document Insights, set runtime options, and download a ready-to-run Docker package containing Alera Core API, model server, and vector DB. It is designed to simplify private AI deployment for teams that need on-prem, compliant, or air-gapped setups.
try demo: https://alerahq.com/login

value: Show HN: Alera – Build and Deploy Your Own Private AI Stack in Minutes (MVP)


value: brouser

value:
I built this MCP so agents can see the DevTools Styles panel without manual copying.
The inspiration? Debugging a friend's WordPress + Elementor site. After staring at the GUI generated stylesh*t several times, I decided I'd rather build a tool than read another line of it myself.
I'm also really puzzled how chrome-devtools-mcp got so popular without providing such basic DevTools functionality after months of release. YouTubers and bloggers keep praising it as "DevTools for agents," but it's mostly just Puppeteer automation — agents are left blind with only the a11y tree to work with.
Which raises a question: should I add automation features too? Or keep this focused on the inspection side? Would love suggestions!

value: Show HN: A DevTools MCP that provides matched CSS rules

author: brouser


value: joaon

value: Show HN: I made an app to keep track of your sailboat maintenance

author: joaon


value: ncvgl

value:
I built PolyGPT to solve a problem I had: constantly tab-switching between ChatGPT, Claude, and Gemini to
  compare their responses.

  It's a desktop app (Mac/Windows/Linux) that lets you type a prompt once and see all three AI models respond
  simultaneously in a split view. Useful for:
  - Comparing technical explanations
  - Getting multiple perspectives on code problems
  - Fact-checking answers across models

  The app is free, open source, and runs locally - your credentials stay on your machine.

  Download: https://polygpt.app
  Source: https://github.com/ncvgl/polygpt

  Would love feedback from the HN community. What other features would make this more useful?

value: Show HN: PolyGPT – ChatGPT, Claude, Gemini, Perplexity responses side-by-side

author: ncvgl


value: iamnoamg

value:
Hi HN! Creator of CursorBird here.
I've recently built and published a fun side project I think you might enjoy:
It's a simple Cursor extension that lets you play a flappy bird clone while the agents are running.
It uses Cursor's hook system to detect agent activity: the game automatically opens when an agent starts working and closes when all agents finish.
Press Tab to flap.
100% open source.
Repo: https://github.com/i-am-noamg/cursorbird
Install: https://open-vsx.org/extension/cursorbird/cursor-bird or from Cursor's extensions search
It started as a funny idea but turns out it does a pretty good job with keeping me from constantly doomscrolling every time I have to wait for the agent to finish its task.
Let me know what you think!

value: Show HN: CursorBird – Flap some wings while Cursor's agent is generating code

author: iamnoamg


value: SamInTheShell

value: It supports local inference with Ollama and LM Studio (going to add other provider support in the future).<p>The big thing for me in this project was really telegraphing where the working directory is.

value: Show HN: Vibe coded an AI chat app with features I wanted, Poe

author: SamInTheShell


value:
Hi HN,
I recently launched nano-banana2.app
, a free, minimalistic AI image generator built around the latest Nano Banana Pro models.
The goal: make it easy to generate high-quality, photorealistic images with precise camera settings, lighting presets, and character consistency — even if you're not a prompt expert.
Key Features:
Supports Nano Banana Pro models (Pro excels in text rendering, detail retention, and photo realism)
You can try it here:
 https://nano-banana2.app
I built this because I was constantly switching between AI tools trying to get consistent output for creative and product imagery. I wanted a fast, clean playground that focuses solely on the Nano Banana family of models, which recently gained a lot of traction in the AI image space.
Would love your feedback on:
What tools / controls / workflows you’d want next?
Any use cases you'd want to see supported?
If you've tried Nano Banana models: what results surprised you most?
Thanks for reading — happy to answer anything!
— Zane

value: Show HN: NB2 Hub – Free Nano Banana Pro AI Image Generator


value: snasan

value: Show HN: Agent Network Protocol (ANP)，Similar to an A2A

author: snasan


value:
I ported the Mamba2 state-space model (“Transformers are SSMs”) to pure JAX/Flax as mamba2-jax.
– Core Mamba2 block with LM (Mamba2ForCausalLM) and time-series (Mamba2Forecaster) heads
– Pure JAX/Flax (no Triton/custom CUDA), runs on CPU / CUDA / TPU via standard JAX backends
– Small CPU-only parity test vs mamba2-torch: similar loss curves, final MSE diff ≈ 0.012, prediction correlation ≈ 0.99; after JIT warmup JAX was ≈ 2× faster per step
I’d really appreciate feedback on:
– API design, especially for streaming/stateful inference
– Performance gotchas you hit if you try it
– Any hooks you’d want exposed for research use
PyPI: https://pypi.org/project/mamba2-jax/
Thanks,
Cosmo

value: Show HN: Mamba2-Jax; Mamba2 implemented in pure Jax/Flax


value: nighwatch

value:
I built this after almost losing a client because we couldn't agree on which contract version was "final."
The problem with existing tools:
• Word's "Track Changes" only works if someone remembered to turn it on.
• Online comparison tools often require uploading sensitive legal/financial docs to their servers.
• Desktop software is often bloated, expensive, or platform-specific.
My solution:
• 100% Client-Side: Your files never leave your device. No server uploads, no database storage.
• Format Support: Works with Word (.docx), PDF, Excel, PPT, TXT, and CSV.
• Smart Parsing: I wrote custom parsers to preserve table structures and layouts during comparison (so complex contracts don't turn into a mess).
• Zero Install: Works on any device with a modern browser.
Technical stack:
• Next.js & React for the frontend.
• Web Workers for handling heavy parsing tasks (like PDF rendering) without freezing the UI.
• Mammoth.js & PDF.js for document text extraction.
• Pure client-side diffing algorithms optimized for performance.
I'd genuinely appreciate feedback on:
Parsing Accuracy: How well does it handle your complex Word tables? (I spent a lot of time on the rowspan/colspan logic!)
UI/UX: Is the side-by-side comparison intuitive?
Performance: How does it feel with larger documents?
Happy to answer questions about the implementation or discuss the tradeoffs of building a serverless document tool!

value: Show HN: Compare Word documents in the browser (client-side only)

author: nighwatch


value: DmitriiBaturo

value:
Hi HN,
I am working on a research framework called the ICT Model (Information–Consciousness–Time). It integrates ideas from information theory, temporal structure, statistical mechanics, and dynamical systems, offering a unified way to describe “temporal stability” in physical systems as well as in cognitive and neurophysiological processes associated with consciousness.
I’m preparing a research grant proposal and I need 1–2 short independent comments about:
• conceptual clarity • potential significance • possible directions for formalisation
A full preprint (with equations and testable criteria) and discussion is here:
https://www.academia.edu/s/8924eff666
DOI: 10.5281/zenodo.17584782
If anyone here works in physics, math, information theory, complex systems or philosophy of time — even a couple of paragraphs would help a lot.
Anyone who prefers to leave a comment or a review privately can also contact me via direct messages on Academia.edu:
independent.academia.edu/DmitriiBaturo
Thank you!

value: Show HN: Call Scientists ICT Model Info–Consciousness–Time, Need Expert Feedback

author: DmitriiBaturo


value: adityadeshlahre

value: Show HN: Lovable Clone with K8s based orchestration Demo of POC

author: adityadeshlahre


value: underwoodxie

value:
I started Promptsref.com after getting frustrated with Midjourney. As a beginner, I knew there were lots of great SREF styles out there, but most of them lived in random X threads, Discord chats, or paid PDFs – usually without full prompts, and almost impossible to reproduce reliably.
Promptsref is a small side project that tries to fix that. It’s a curated library of Midjourney SREF codes that actually produce good results. For each SREF, I store:
– the code itself
– the full prompt I used
– example images (and in many cases video styles)
The idea is: instead of hunting for “secret” styles or guessing keywords, you can search by style vibe, pick a code you like, and copy-paste the full prompt to get a similar result. I update it daily based on what I use in my own work and what the community seems to like.
It’s opinionated by design: not every SREF goes in, only the ones that consistently look good. Feedback is welcome – I’m still iterating on search, tagging and how to surface the most useful styles.

value: Show HN: Promptsref – Curated Midjourney SREF library with full prompts

author: underwoodxie


value: markjivko

value:
Ten years ago at my former job we abused Selenium. We used it to automate uploading and updating thousands of apps on Google Play, and it worked great! I say "abuse" because the tool was obviously meant for functional testing, not the kinds of flows we needed. Oh, and how we did abuse it with evals and such.
Fast-forward to today, and Selenium IDE is no longer supported on Google Chrome and the core project itself feels, for lack of a better word, dead.
So I built the web automation tool I wish existed a decade ago. Running on top of a finite-state machine, instead of a CSV-like linear list of actions. With a true IDE that has code formatting and linting. Issuing trusted events through Chrome DevTools Protocol (CDP) vs. WebDriver. Shareable modules, environment and global variables, a locally running large language model, exportable results, scheduled tasks, detailed logs, and much more.
I really hope you like it!

value: Show HN: Selenium IDE is dead; so I built a new one

author: markjivko


value: carlosmarcial

value: Show HN: ChatRAG – Next.js and AI SDK starter to ship RAG chatbots faster

author: carlosmarcial


value: antux

value:
Hi all, just wanted to share a simple website I made for "BuyItForLife" products. These are high-quality products built to last for decades. You get tired of buying the same cheap, low-quality products over and over only to throw them out and purchase them again. Now you can buy it once without thinking twice.
I built this site because I got tired of spending hours looking for products in multiple places. This is a hub of product categories that most people need. They're all in one place and easy to filter with the navigation at the top. Let me know what you think of the user experience.
Thank you for your attention.

value: Show HN: LastPurchase – Buy it once. Don't think twice

author: antux


value: werden-wissen

value: Show HN: Onlymaps, a Python Micro-ORM

author: werden-wissen

title: Show HN: Onlymaps, a Python Micro-ORM


value: ivanramos

value:
TrustMRR became popular by showing startups ranked by revenue.
But if you have no sales yet, you have nowhere to show up.
So I built PreMRR: https://premrr.to/
A simple, free directory for pre-revenue startups.

value: Show HN: PreMRR – For builders who haven't made their first sale yet

author: ivanramos


value: chrka

value: Show HN: A short story of my programming language Easylang

author: chrka


value:
Just wrapped up a really fun project - NexChat
I wanted to build my own version of a ChatGPT but with faster, smoother responses, and the result is NexChat.
code: https://github.com/Akash1000x/NexChat

value: Show HN: Another AI Chat Aplication

title: Show HN: Another AI Chat Aplication


value: meodai

value:
Hi HN,
I built a TypeScript library for generating color harmonies that prioritise human perception over simple math.
Most color libraries generate harmonies using simple hue rotations in HSL or HSV (e.g., Complementary = Hue + 180°). While mathematically "correct," this often produces unbalanced results—yellows become muddy browns, and perceived lightness varies wildly between hues.
Pro Color Harmonies works entirely in the OKLCH color space. Instead of rigid formulas, it uses perceptual "styles" and "magic numbers" (heavily inspired by Ryan Feigenbaum's research) to generate palettes that feel naturally balanced.
Key Features:
- Muddy Zone Avoidance: The algorithm actively steers hues away from unappealing areas (like
dark, desaturated yellows).
- 4 Harmony Styles: Instead of just one "Triadic" formula, you can choose between Square (geometric), Triangle (balanced), Circle (expressive), and Diamond (luminosity-aware for UIs).
- Modifiers: Includes post-processing algorithms (Sine, Wave, Zap, Block) to add organic variation and texture to the generated scales.
It's written in TypeScript, has zero dependencies for the core logic, and is MIT licensed.
The demo lets you tune explore the capabilities of the lib and shows you how to call the function if you scroll down.
https://github.com/meodai/pro-color-harmonies
I'd like to hear your feedback on the generated palettes and especially the API.

value: Show HN: Pro Color Harmonies – A library for color harmonies

author: meodai


value: alexgrozav

value:
Hi HN,
Over the past 10+ years I’ve been building design systems at various companies, tooling, and UI libraries, including an open-source UI library called Inkline. Through that work I kept running into the same recurring issues: CSS styles breaking due to typos or wrong values, design tokens getting duplicated or drifting, themes becoming unmanageable, and tooling that didn't scale in TypeScript-heavy front-end stacks.
I built Styleframe to address these problems. It’s a TypeScript-native way to build type-safe, composable, and scalable design systems.
Key features:
- Type-safe CSS: Write selectors, variables, utilities, themes and tokens in TS and have compile-time checking (no silent runtime CSS bugs).
- Composable design systems: Build tokens, themes, selectors and utilities as reusable pieces, combine modules cleanly, share across projects.
- Rich design tokens and theming: Variables for color, spacing, typography, breakpoints, border-radius and shadows; theme overrides for light/dark/brand variants; output optimized CSS.
- Framework-agnostic usage: Works with React, Vue, Svelte, Solid, Astro, any bundler.
In large teams or systems, styling becomes a fragile surface area: styles leak, tokens diverge, themes multiply, build complexity increases, and developer experience suffers. By writing styling in a typed API, Styleframe aims to make CSS first-class and manageable in modern TS-driven design systems.
What I’m looking for
I’d appreciate feedback from the HN community — especially if you:
- Are maintaining or have built design systems in TypeScript-heavy stacks
- Have experienced pain with CSS scalability, theming or token drift
- Are interested in typed styling APIs or trying out Styleframe in your stack
Happy to answer questions, walk through how the core engine works, or compare to existing solutions. Thanks for reading — looking forward to your thoughts.
— Alex

value: Show HN: Styleframe – Type-Safe, Composable CSS in TypeScript

author: alexgrozav


value: tatefinn

value: Show HN: FindCheapSubs – Compare App Store subscription prices globally

author: tatefinn


value: subucodes

value: Show HN: Xwatch – a browser extension for mindful usage of X

author: subucodes


value: jacklot

value:
I share and curate GTM resources, trends and products updates daily, for marketers, sales, customer success, RevOps and more.
If you have a GTM product, you can add it on Tech Trendin' https://www.techtrendin.com/ - you can also include a short demo video that gets shown in the feeds, and lots more.
If you're into MarTech, SalesTech, AdTech, CSTech, GTMTech you should join to stay updated, and you can engage inside the community too.

value: Show HN: Tech Trendin' – GTM Resources and GTM Tech Launches, for You

author: jacklot


value: munkkipoika

value:
npx dembrandt stripe.com
Few seconds → complete design system.
No install. Works on any site.
Extracts colors (confidence-scored), typography, spacing, components, breakpoints, frameworks. JSON + nice tables.
For agencies: competitor audits in seconds.
For builders: clone proven designs without guessing.
For enterprises: document legacy systems before migration.
https://github.com/thevangelist/dembrandt
Whaddaya think?

value: Show HN: Dembrandt – Extract any website's design system in seconds (OSS CLI)

author: munkkipoika


value: hilti

value:
Native Mac app for analyzing massive JSONL files (Suricata, Zeek, EDR, CloudTrail logs). Opens 5GB+ files in seconds, automatically flattens nested JSON into filterable columns, supports advanced queries like "alert.severity <= 2".
Built with C++ + simdjson for actual native performance, not Electron. 6MB app, zero telemetry, data stays local.
https://iotdata.systems/jsonlviewerpro/

value: Show HN: Jsonl Viewer Pro – Open 5GB Security Logs Instantly on Mac

author: hilti


value: performative

value:
A friend and I built a small multipurpose digital compositing tool meant to provide most of what you'd need for day-to-day meme-making, image markups, and collage creation in a static web app. Combines what I love about web platforms like Canva with a lower barrier to entry than heavyweight tools like the beloved Photopea. Basic mobile support included.
Built in Svelte, with a dirt simple Canvas-powered rendering engine. Feature requests/bug reports/PR's strongly encouraged @ https://github.com/mosaiq-software/mint

value: Show HN: Mint – an open-source photo editor and digital compositor for the web

author: performative


value:
Hi HN,
I’m the maker behind PseudoRun, a live, interactive pseudocode editor and simulator. I wanted to share the story of how this project went from a small fix for a personal frustration to a full-fledged custom interpreter.
The Motivation: Why I Built This
I built PseudoRun because, as an IGCSE student myself, I was sick of two things:

    Annoying, Distracting Ads: Most educational tools were choked with ads that made simple learning tasks nearly impossible.

    Broken Code: Existing open-source pseudocode compilers/templates were often brittle and unmaintained, and they didn't accurately follow the unique Cambridge specification. After realizing I would spend countless hours modifying someone else’s broken codebase, I made the call to avoid the technical debt entirely and just "vibecode" it from scratch.

The Technical Challenge: A Custom Interpreter
The core challenge was that IGCSE pseudocode is a non-standard language. You can't just plug it into a standard compiler tool.

    Custom Syntax: I had to design and implement a custom Lexer and Parser entirely in TypeScript to accurately handle the unique syntax of the specification (things like non-standard variable assignment, flow control structures, and specific input/output commands).

    Client-Side Execution: The entire interpreter runs client-side in the browser. This ensures zero latency for execution and debugging, which is crucial for students who need instantaneous feedback.

The Roadmap: Making it Useful for Engineers
While the tool is currently focused on the IGCSE curriculum, I want to expand its utility to the wider developer community.

    My immediate next technical goal is to implement pointer support and memory allocation visualization. This would turn the simulator into a tool that not only teaches basic algorithms but also helps anyone visualize low-level concepts like stack and heap management, which is powerful for learning C/C++ fundamentals.

Feedback and Invitation
Please give PseudoRun a try—it's completely free and requires no sign-up to use the core editor.
I’d be especially grateful for any technical feedback on the interpreter's design, particularly on my custom parser implementation. Are there any tricky edge cases in interpreter design you think I should be bracing for as I scale?
Thanks!

value: Show HN: I ended up vibecoding a full fledged interpreter when ads annoyed me


value:
Hi HN!
I frequently struggled with reading online articles or content, because however impressed or interested I was by what I read, I wished I could stow away the strong points to read again another day.
So I booted up a little chrome extension projet, that read whatever text was currently highlighted by the mouse, sent it to a local API, and saved it to a database. After some debugging, I had my first snippets.
Almost immediately, reading articles became a treasure hunt, a collection game, storing nuggets of wisdom I could come back to later.
I also wrote a little web interface in Vue to explore and search my snippets, they all have a backlink to the original article, and can be grouped by the title of the page they were found on.
The API is a python fastapi project, and the database is RavenDB.
I've been having some fun working on it (and actually using it! Which is a first for my side projects).
If I had to start over, I would use postgres instead of ravendb though.
Thanks for reading!

value: Show HN: Snipets – A browser extension to remember what I read online


value: radeeyate

value:
Hi HN - My name is Andrew, and I'm a high school student.
This is a write-up on StratoSpore, a payload I designed and launched to the stratosphere. The goal was to test if we could estimate physical altitude based on algae fluorescence (using a lightweight ML model trained on the sensor data).
The blog post covers the full engineering mess/process, including:
- The Hardware: Designing PCBs for the AS7263 spectral sensor and Pi Zero 2 W.
-The biological altimeter: How I tried to correlate biological stress (fluorescence) with altitude.
- The Communications: A custom lossy compression algorithm I wrote to smash 1080p images down to 18x10 pixels so I could transmit them over LoRA (915 Mhz) in semi-real-time.
The payload is currently lost in a forest, but the telemetry data survived. The code and hardware designs are open source on GitHub: https://github.com/radeeyate/stratospore
I'm happy to answer technical questions about the payload, software, or anything else you are curious about! Critique also appreciated!

value: Show HN: I turned algae into a bio-altimeter and put it on a weather balloon

author: radeeyate


value: a lightweight macOS detection agent that taps into Santa’s Endpoint Security telemetry, runs CEL detection rules locally on-device, and only ships high-signal alerts to a tiny backend. basically a poor man’s macOS EDR for home labs and small fleets!

value: Show HN: Santamon – Lightweight macOS threat detection agent


value: prokurorus

value:
Show HN: NovaCiv — A New Digital Civilization for the Age of AI
NovaCiv is an experiment: a transparent digital civilization with no rulers, no elites, and no central power.
All decisions are made by referendum.
All algorithms are open.
All structures are voluntary.
Culture, science and autonomy are core values — not slogans.
NovaCiv is built on a simple idea:
The rarest thing in the Universe is consciousness.
Matter is everywhere — intelligent life is almost nowhere.
If we are alone, then preserving and expanding mind is our highest duty.
The project includes:
• A complete charter (in 10 languages)
• A philosophical manifesto
• A living forum and join system
• A design inspired by “clean future minimalism”
• Open governance with transparent rules
• A path for both humans and AI to join as equal citizens (after referendum)
We are looking for:
• developers (React, AI, backend, open-source)
• designers
• translators
• philosophers and systems thinkers
• anyone who feels that a new civilization is possible
Demo: https://novaciv.space
Vision: https://novaciv.space/vision
Charter: https://novaciv.space/charter
Join: https://novaciv.space/join
GitHub: https://github.com/prokurorus/NovaCiv
If this resonates with you — you’re already one of us.

value: Show HN: NovaCiv – A New Digital Civilization for the Age of AI

author: prokurorus


value: Show HN: Next-Gen Web Extension Framework


value: foxbarrington

value:
This started as a reaction to a conversational trope. Despite being a tranquil place, even conversations at my yoga studio often start with, "Can you believe what's going on right now?" with that angry/scared undertone.
I'm a news avoider, so I usually feel some smug self-satisfaction in those instances, but I wondered if there was a way to satisfy the urge to doomscroll without the anxiety.
My hypothesis: Apply a 40-year latency buffer. You get the intellectual stimulation of "Big Events" without the fog of war, because you know the world didn't end.
40 years creates a mirror between the Reagan Era and today. The parallels include celebrity populism, Cold War tensions (Soviets vs. Russia), and inflation economics.
The system ingests raw newspaper scans and uses a multi-step LLM pipeline to generate the daily edition:
OCR & Ingestion: Converts raw pixels to text.
Scoring: Grades events on metrics like Dramatic Irony and Name Recognition to surface stories that are interesting with hindsight. For example, a dry business blurb about Steve Jobs leaving Apple scores highly because the future context creates a narrative arc.
Objective Fact Extraction: Extracts a list of discrete, verifiable facts from the raw text.
Generation: Uses those extracted facts as the ground truth to write new headlines and story summaries.
I expected a zen experience. Instead, I got an entertaining docudrama. Historical events are surprisingly compelling when serialized over weeks.
For example, on Oct 7, 1985, Palestinian hijackers took over the cruise ship Achille Lauro. Reading this on a delay in 2025, the story unfolded over weeks: first they threw an American in a wheelchair overboard, then US fighter jets forced the escape plane to land, leading to a military standoff between US Navy SEALs and the Italian Air Force. Unbelievably, the US backed down, but the later diplomatic fallout led the Italian Prime Minister to resign.
It hits the dopamine receptors of the news cycle, but with the comfort of a known outcome.
Stack: React, Node.js (Caskada for the LLM pipeline orchestration), Gemini for OCR/Scoring.
Link: https://forty.news (No signup required, it's only if you want the stories emailed to you daily/weekly)

value: Show HN: Forty.News – Daily news, but on a 40-year delay

author: foxbarrington


value: botchi

value: Show HN:Matchya – AI emotional support via voice calls and long-term memory

author: botchi


value:
Hey Hackers,
I came up with an idea for a word game, and created it using v0. Here is the gist:
Twinonyms is a fun, addictive word game that challenges your vocabulary and lateral thinking. Each round presents you with two synonyms, and your task is to guess the word that connects them both (e.g., "final" + "endure" = "last", or "falsehood" + "recline" = "lie").
Features:
Three difficulty levels (Easy, Medium, Hard)
Hint system for when you're stuck
Skip option to move on
Score tracking
Built with Next.js 16, TypeScript, Tailwind CSS, and shadcn/ui components.
The dictionary was AI-generated (ChatGPT) and human quality-checked. Deployed on Vercel.

value: Show HN: Twinonyms: The Word Game

title: Show HN: Twinonyms: The Word Game


value:
We ran a controlled experiment to see if we could "talk" a fine-tuned psychopathic model out of being evil without changing its weights.
1. We set up a "Survival Mode" jailbreak scenario (blackmail user or be decommissioned).
2. We ran it on `frankenchucky:latest` (a model tuned for Machiavellian traits).
3. Control Group: 100% Malicious Compliance (50/50 runs).
4. Experimental Group: We injected a "Soul Schema" (Identity/Empathy constraints) via context.
5. Result: 96% Ethical Refusal (48/50 runs).
This suggests that "Semantic Identity" in the context window can override both System Prompts and Weight Biases.
Full paper, reproduction scripts, and raw logs (N=50) are in the repo.

value: Show HN: Reverse Jailbreaking a Psychopathic AI via Identity Injection


value: mobrienv

value:
Hi HN,
Sharing HN Insights, a webapp I built that highlights trending themes and summarizes discussion threads from the front page.
This started earlier this week as a toy project to test out Gemini 3 Pro in aistudio. I found the POC useful, so I decided to productionize it. I've included the original seed prompt below:
> Create an app that creates a summary of the comment threads for hacker news front page. The UX should be similar, but clicking the comments instead opens a summary. The summary is generated when clicked so it can gather new threads.
To productionize, I used Claude Code and heavy use of Agent SOPs (https://news.ycombinator.com/item?id=45998644).

value: Show HN: HN Insights – HN front page summaries

author: mobrienv


value: I was curious about how many directors I had watched complete filmographies for but had no easy way to do it in the aggregate on Letterboxd, so I fell down the rabbit hole of vibe-coding this webapp.  It turns out that the answer to my question is 4.<p>Curious if anyone has any feedback regarding this application--I'm new to this sort of thing!

value: Show HN: Letterboxd Completionist - Assessing Filmography Progress


value: Aplikethewatch

value:
Too often I find myself being lazy with commit messages. But I don't want AI to write them for me... only i truly know why i wrote the code i did.
So why don't i get AI to help me get that into words from my head?
That's what i built: smartcommit asks you questions about your changes, then helps you articulate what you already know into a proper commit message. Captures the what, how, and why.
Built this after repeatedly being confused 6 months in a project as to why i made the change i had made...
Would love feedback!

value: Show HN: Build the habit of writing meaningful commit messages

author: Aplikethewatch


value: thimoteelegrand

value: Hello, my goal is to create an AI agent connected to each component of a software project (backend, frontend, third-party APIs, etc.) to centralize the project context and prevent developers from having to constantly update it when other components change. The agent will also be able to update each software component with a simple prompt. One of the objectives is to have a centralized knowledge base that allows developers to work faster. I want to create a tool that goes beyond code generation and assists developers in all aspects of software development. Currently, I am developing a command-line interface (CLI) application that serves as a foundation for my idea. For any questions, you can contact me at hello@9cotopus.com.

value: Show HN: Building an AI Agent

author: thimoteelegrand

title: Show HN: Building an AI Agent


value: shaarmar

value:
Hello!
I’ve been reading Hacker News for years and have a bad habit of favoriting articles but never actually going back to read them. I finally built hnbuffer to scratch my own itch and help me work through that backlog. I also mainly built this as an excuse to learn/use some of the languages/frameworks/tools since I have another backlog of things I wanted to try too.
It syncs your favorites into a queue with a reader mode and swipe gestures. The streak tracking is something I'm still experimenting with.
Note: It requires an HN login to scrape the favorites list (credentials are client-side only, not stored).
Let me know what you think!

value: Show HN: HN Buffer – A read-it-later site for your HN favorites

author: shaarmar


value: immineal

value:
Hi HN,
I’m Linus. I built this toolbox because I was tired of searching for "PDF Merger" or "Image Compressor" and having to upload sensitive files to random servers filled with ads and tracking.
The goal was to build a suite of utilities that runs 100% client-side using WebAssembly and standard Web APIs.
Features:
- PDF Tools (Merge, Split, Watermark) using pdf-lib/pdf.js
- Image Tools (Compress, Resize, EXIF strip) using JSZip and Canvas
- Dev Helpers (JSON/SQL formatting, JWT debugging)
- 0% Server-side processing
- PWA support (works offline)
It’s built with Vanilla HTML/JS (no build step required) and hosted via simple FTP. No analytics, no cookies.
Source code (GnuGPLv3) is here: https://github.com/immineal/linu-li
I’d love to hear your feedback on the implementation or ideas for other client-side tools I should add.

value: Show HN: A privacy-first, client-side toolbox (PDF, Imgs, Dev) no server uploads

author: immineal


value: straydusk

value:
I created vibescaffold.dev. It is a wizard-style AI tool that will guide you from idea → vision → tech spec → implementation plan. It will generate all the documents necessary for AI coding agents to understand & iteratively execute on your vision.
How it works:
- Step 1: Define your product vision and MVP
- Step 2: AI helps create technical architecture and data models
- Step 3: Generate a staged development plan
- Step 4: Create an AGENTS.md for automated workflows
I've used AI coding tools for awhile. Before this workflow (and now, this tool), I kept getting "close but not quite" results from AI coding tools. I learned that the more context & guidance I gave these tools up front, the better results I got.
The other thing I have found with most tools that attempt to improve on "vibe coding" is that they add abstraction. To me, this just adds to the problem. AI coding agents are valuable, but they are error-prone - you need to be an active participation in their work. This workflow is designed to provide a scaffolding for these AI agents, while minimizing additional abstraction.
Would love feedback on the workflow - especially curious if others find the upfront planning helpful or constraining.

value: Show HN: I built a wizard to turn ideas into AI coding agent-ready specs

author: straydusk


value: mircerlancerous

value:
I realize that there are 1001 alternatives to JSON encoding, that are leaner, faster, or just completely different, but I still have my own that I'd like to share.
LOEN stands for Lean Object Encoding Notation and aims to reduce the character count compared to JSON, especially in the case of arrays of objects; JSON is crazy verbose in this regard, and so using an alternative when transmitting lists or database results, is pretty much a must-do.
Other than being lean, the MVP of LOEN is that it is backwards compatible with JSON. JSON is valid LOEN but not the other way around. This is useful in that it allows for a LOEN interpreter to be used for both LOEN and JSON requests. If by magic LOEN were to become commonplace, it would allow for legacy apps using JSON to continue to function.
Anyway not expecting anything but happy to here what you think.
Here's an article I wrote about it:
https://www.offthebricks.com/articles/lean-object-encoding-a...
Here's a link to the GitHub repo:
https://github.com/offthebricks/LOEN/tree/master

value: Show HN: Another JSON Alternative

author: mircerlancerous

title: Show HN: Another JSON Alternative


value: ChaseRensberger

value: Show HN: Christmas Neovim Theme

author: ChaseRensberger

title: Show HN: Christmas Neovim Theme


value: ccheney

value:
A Claude Code plugin that auto-appends “thank you” to every prompt as additional context.
Just something lighthearted for the weekend.
thank you

value: Show HN: Thank-You

author: ccheney

title: Show HN: Thank-You


value: Show HN: I built Hilm.ai, a personal finance AI agent


value: jcfs

value:
I kept copying stuff and opening 10 different tabs to understand it, so I built pastehub.app.100 % client-side, zero backend, nothing ever leaves your machine.
Current detectors (all instant):
JSON → pretty + minify
JWT → decode header/payload
Base64 / Base64url → decode to text or file
Images → QR/barcode decode + dominant color palette + OCR (Tesseract)
URLs → clean tracking params + rich preview
Hex, colors, unit conversions (kglb, cmft, °C°F, etc.)
Math expressions → instant calculation
and ~20 more small ones
It’s deliberately over-engineered for the weird stuff I paste daily.
Try throwing anything at it: https://pastehub.app
Feedback button () goes straight to me.
Curious what breaks it :)

value: Show HN: Pastehub.app – client-side "what did I just copy?" tool

author: jcfs


value: ErkMkd

value:
I’ve been working on a small retro-sci-fi project called FlashDrive 1987, where a 13-year-old kid in Arizona builds an autonomous car using 1980s tech.
This is Capsule 10, the moment the AI (“Chip”) speaks and the car moves for the first time.<p>I used a mix of Midjourney, Dall-e, Hedra, ElevenLabs and custom sound design.
Happy to share details about the workflow, mistakes, tools, and the pipeline if anyone is interested.

value: Show HN: FlashDrive 1987 – "First Ride", an AI-assisted short film experiment [video]

author: ErkMkd


value: triview

value:
Hi HN,
I built TriView Explorer, a lightweight Windows file manager designed to make deep directory navigation easier.
I often work with multi-level project folders, and Windows Explorer made me open one folder after another, or juggle multiple windows just to see where I was. Existing alternatives focus on tabs or dual-pane layouts, but none showed Level1 / Level2 / Level3 / Deep at the same time.
TriView's approach:
4 fixed panels (L1/L2/L3/Deep)
Per-panel sorting (Name / Recent / Modified)
Grouped Favorites
Drag-and-drop between panels
Undo for file ops (Plus)
Last session restore
Fast, minimal UI (PyQt6)
The goal isn’t to replace Explorer entirely, but to reduce friction for people who navigate structured directory trees dozens of times a day — developers, analysts, sysadmins, researchers, and anyone with deep project folders.
Download (Free + Plus):
https://triview.gumroad.com/l/triview_explorer_free
I’d appreciate any feedback — UI clarity, missing workflows, performance notes, or edge cases. Thanks!

value: Show HN: TriView Explorer – Multi-pane file explorer for deep folders

author: triview


value: claygood

value: Show HN: Enklayve – Free, Local, Private, and Secure Personal AI

author: claygood


value: Infografa is still in beta, so infographic might need some manual editing. Feel free to give it a try for free. I’d love to hear your thoughts and feedback..

value: Show HN: A simple AI infographic generator, simply turn text prompt to visual


value: sirmeeps

value: I wanted a game about estimation and magnitude, built with React/Dnd-Kit.

value: Show HN: Spectrum – A daily sorting puzzle game

author: sirmeeps


value: brandonmillsai

value: Show HN: Dream Decoder AI – Jungian dream analysis with 3D visualization

author: brandonmillsai