Show HN Shelf — October 15, 2026

30 Show HN launches from the last 30 days, ranked by points — 7 AI and LLM, 6 developer tooling, 17 everything else. Each links the project itself, with the HN thread in the text.

🤖 AI & LLM Launches

Whiteboard (YC W26) – An open-source IDE for thoughtful software design

Hello! We’re Sid, Alex, Ketan, and Milan. We’re building Whiteboard (https://whiteboard.dev.fast/), an open-source desktop app where humans and agents can architect software together in a common workspace. Here’s our repo: https://github.com/devdotfast/whiteboard. We were… 424 points · 143 comments · HN thread https://news.ycombinator.com/item?id=49833867 · posted 2026-09-24. Pricing: open-source desktop app where humans and agents can architect software.

Let your AI agents paint big arrows, boxes and text on your screen

Let your AI agents paint big arrows, boxes and text on your screen 419 points · 195 comments · HN thread https://news.ycombinator.com/item?id=50018817 · posted 2026-10-09. Pricing: see the post.

Reladraw – A diagram language where you decide where to place things

I love making diagrams to help understand, plan, etc. However, the options are (A) auto-placement languages like Mermaid or Graphviz (which don't let me decide how the diagram looks), or (B) software like Draw.io which are powerful but are very time consuming (and inefficient… 415 points · 119 comments · HN thread https://news.ycombinator.com/item?id=49858513 · posted 2026-09-26. Pricing: see the post.

Mini-AGI – Dynamic continual learning model trained on 8GB VRAM

Sorry for the pretentious name, I know, I know.. It just contains all the pieces I would like to see a AGI model to have, and I can't stand the temptation. Before throwing rocks at me, please take a glance at the Readme, and I hope it will cover your mood a little bit. So,… 277 points · 80 comments · HN thread https://news.ycombinator.com/item?id=49783133 · posted 2026-09-21. Pricing: see the post.

Share your AI Setup, Learn from others

I kept seeing engineers share what they were building with AI; however, I was always more curious about how they worked. Which agents did they use? What skills and tools had stuck or been thrown out the window? How did they manage longer-running tasks? So I built this with the… 251 points · 140 comments · HN thread https://news.ycombinator.com/item?id=49740105 · posted 2026-09-17. Pricing: see the post.

Cactus Needle 3: 8-29MB automation models can match DeepSeek V4 Flash

Hey HN, Henry from Cactus here. We submitted Needle 2 here a few weeks ago, and the feedback in the discussion thread was incredibly valuable, thanks! Thanks to all that feedback, we’ve been able to move quickly to release Needle 3 and I'd love to hear what you think again. The… 236 points · 93 comments · HN thread https://news.ycombinator.com/item?id=49748553 · posted 2026-09-18. Pricing: see the post.

HN.watch – Videos of all Hacker News posts

Hi HN, I’m Per, founder of Scrimba (YC S20). We’ve spent the last decade teaching people how to code with an HTML-based video format. We’ve now plugged an LLM into it, so that people can create explainer videos about anything. It’s called “Scrimba Explain”. To demo this… 226 points · 97 comments · HN thread https://news.ycombinator.com/item?id=49879401 · posted 2026-09-28. Pricing: $0.

🛠️ Developer Tool Launches

Make cursed fonts like Times New Bastard

A joke tool that abuses OpenType's ligature feature to mix fonts. It works pretty fast on client-side by loading Python in WASM. 862 points · 126 comments · HN thread https://news.ycombinator.com/item?id=49823738 · posted 2026-09-23. Pricing: see the post.

Capsule – Single-file web apps that save their data into SQLite

Hey HN, I always had the problem that building HTML pages is really simple now, but trying to save data required hosting it somewhere, and sharing it afterwards was not easy. Over the last few months, I've been building an app called Capsule (it’s also the file extension name)… 380 points · 166 comments · HN thread https://news.ycombinator.com/item?id=49712278 · posted 2026-09-15. Pricing: see the post.

Quake ported to safe Rust, playable in browser

Quake ported to safe Rust, playable in browser 241 points · 181 comments · HN thread https://news.ycombinator.com/item?id=50016312 · posted 2026-10-09. Pricing: see the post.

BetterWispr – Free, open-source dictation for Mac

BetterWispr – Free, open-source dictation for Mac 220 points · 127 comments · HN thread https://news.ycombinator.com/item?id=50042333 · posted 2026-10-11. Pricing: see the post.

Petal, open-source CoScreen/ScreenHero finally free

Hi HN! I’m Jason Thomas, one of the founders of CoScreen. As some of you may know, Datadog sunset the CoScreen service on July 31st. Four of us from the original CoScreen team have spent the last couple months building a free and open source pair programming tool inspired by… 211 points · 40 comments · HN thread https://news.ycombinator.com/item?id=50092470 · posted 2026-10-14. Pricing: free and open source pair programming tool inspired by those that came before us: It.

Ledge.sh – Runnable Markdown Notes

Hi HN, Ledge is a Markdown notebook that runs shell commands, code, SQL, etc from inside your own notes. I built Ledge because I spend much of my day copy/pasting commands from my notes into the terminal. I was inspired by how much cmux helped me organize my terminals - but… 205 points · 88 comments · HN thread https://news.ycombinator.com/item?id=49902382 · posted 2026-09-29. Pricing: free and open-source.

🎈 Other Launches

An e-ink frame that hears birds and draws them as 1800s illustrations

See also: Avian Visitors - https://news.ycombinator.com/item?id=48343424 - May 2026 (20 comments) 2391 points · 267 comments · HN thread https://news.ycombinator.com/item?id=49711544 · posted 2026-09-15. Pricing: see the post.

Bigwords.page – Turn any screen into a sign. The URL is the app

Bigwords.page – Turn any screen into a sign. The URL is the app 728 points · 165 comments · HN thread https://news.ycombinator.com/item?id=49994443 · posted 2026-10-07. Pricing: see the post.

Guitoro, a virtual guitar you strum with your keyboard

Guitoro is a free browser guitar using recordings of real instruments. You can strum with your keyboard, mouse, or touchscreen, choose acoustic, classical, electric guitar or bass, and see chord fingering and each stroke. Song practice can be slowed to 20%, and there are free… 566 points · 161 comments · HN thread https://news.ycombinator.com/item?id=50077020 · posted 2026-10-13. Pricing: free browser guitar using recordings of real instruments.

Carrier-Explode: iPhone, Pixel and Galaxy carrier settings decoded

Showing off carrier-explode, one of my side projects that continuously archives carrier settings for all major phone brands. carrier-explode also contains decoders and explanations for all the common baseband configurations, etc. There’s still quite a bit of work to be done in… 431 points · 55 comments · HN thread https://news.ycombinator.com/item?id=50024499 · posted 2026-10-09. Pricing: see the post.

Real-time Solar System with 526k asteroids and all tracked satellites

Real-time Solar System with 526k asteroids and all tracked satellites 408 points · 111 comments · HN thread https://news.ycombinator.com/item?id=49898778 · posted 2026-09-29. Pricing: see the post.

Giving Opus 5.5 a simulated paint canvas

Giving Opus 5.5 a simulated paint canvas 392 points · 114 comments · HN thread https://news.ycombinator.com/item?id=49928566 · posted 2026-10-02. Pricing: see the post.

Lofi Cities – Pixel-art city nights with browser-generated lofi

Lofi Cities – Pixel-art city nights with browser-generated lofi 320 points · 139 comments · HN thread https://news.ycombinator.com/item?id=49869574 · posted 2026-09-27. Pricing: see the post.

PS2 games statically recompiled to WebAssembly

PS2 games statically recompiled to WebAssembly 312 points · 158 comments · HN thread https://news.ycombinator.com/item?id=50052251 · posted 2026-10-12. Pricing: see the post.

WallHop – 12ft.io is gone, so I built a replacement

Hi HN, I'm Josh. WallHop is a free paywall bypass: paste an article URL (or prefix any URL with wallhop.io/) and you get the readable article without the paywall popup, ads or clutter. No signup, no extension. I built it after 12ft.io went away. The News Media Alliance took it… 286 points · 126 comments · HN thread https://news.ycombinator.com/item?id=50038634 · posted 2026-10-11. Pricing: free paywall bypass: paste an article URL (or prefix any URL with wallhop.

Jev Plays Pokémon Red

Hey HN! Wanted to share a fun project I've been hacking on. Given Jev can make decisions really fast (but not fast enough to play Doom yet sadly), I wanted to try and push it to play a more complex game than Tetris. So I went with Pokémon. I've spent endless hours playing this… 282 points · 124 comments · HN thread https://news.ycombinator.com/item?id=49845172 · posted 2026-09-25. Pricing: open sourced everything in case you want to hack on it yourself here: h.

Unfenced – Land for sale that borders public land

Unfenced – Land for sale that borders public land 244 points · 166 comments · HN thread https://news.ycombinator.com/item?id=50102247 · posted 2026-10-15. Pricing: see the post.

Glashütte Trash Clock – A 30-minute pendulum clock made from trash

This is a functional 30-minute pendulum clock entirely from discarded materials—cardboard, zip ties, tape, a yardstick, and a paperclip escapement, built in the German Eldorado of precision watchmaking: Glashütte. It also acts as a reference clock for GTC, a new satirical… 236 points · 48 comments · HN thread https://news.ycombinator.com/item?id=49930439 · posted 2026-10-02. Pricing: see the post.

Koi.rest – watch some fish and regain your balance

Hi there. My name is Paul. I’m a developer, an explorer and I’ve got ADHD. As of the beginning of August, I’m also unemployed. This last part, along with everything else this past year, has caused me a great deal of stress. While our balcony zen garden project is yet to be… 228 points · 65 comments · HN thread https://news.ycombinator.com/item?id=49837006 · posted 2026-09-24. Pricing: see the post.

Making a flexible "neon" t-shirt with LED filaments

Making a flexible "neon" t-shirt with LED filaments 222 points · 37 comments · HN thread https://news.ycombinator.com/item?id=50008047 · posted 2026-10-08. Pricing: see the post.

How random are you?

How random are you? 214 points · 119 comments · HN thread https://news.ycombinator.com/item?id=50074909 · posted 2026-10-13. Pricing: see the post.

Hacking a $20 4G wireless hotspot into a texting device

Hacking a $20 4G wireless hotspot into a texting device 210 points · 37 comments · HN thread https://news.ycombinator.com/item?id=49712102 · posted 2026-09-15. Pricing: see the post.

Destroy Any Website with Stickman

Destroy Any Website with Stickman 199 points · 42 comments · HN thread https://news.ycombinator.com/item?id=49880601 · posted 2026-09-28. Pricing: see the post.

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30 launches this month. Ranked by Hacker News points over the last 30 days — a popularity signal, not a review. Found a dead link? Reply to the email.