Show HN
"Show HN" is where developers showcase their own products and projects on HackerNews. We pick the top-scoring launches every day.
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The rarest tech books and docs you've probably never read
Show HN A curated collection of obscure and hard-to-find technical books and docs.
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Let your AI agents paint big arrows, boxes and text on your screen
Show HN A tool that lets AI agents draw visual overlays like arrows and boxes on screen.
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Apogee: Rebuilding Mozilla's Orbit, fully local and private
Show HN A fully local, privacy-first alternative to Mozilla's Orbit social platform.
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Wordminos – Crosswords Meet Dominos
Show HN A word puzzle game blending crossword and domino mechanics into one.
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Quake ported to safe Rust, playable in browser
Show HN Classic Quake rebuilt in safe Rust and compiled to WebAssembly for browser play.
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Making a flexible "neon" t-shirt with LED filaments
Show HN A DIY guide to building a wearable neon-effect shirt using flexible LED filaments.
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Jevman – AI decision models play Pac-Man
Show HN Benchmark comparing AI models by having them play Pac-Man autonomously.
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Rgpu – a PyTorch device whose tensors live on a remote GPU
Show HN Use a remote GPU as a native PyTorch device over a network connection.
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Pocketty – iPhone SSH terminal that pings you when an agent is blocked
Show HN Mobile SSH terminal that sends alerts when your AI agent needs input.
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SVG Spark – 10 client-side SVG design and dev tools
Show HN A browser-based toolkit with 10 tools for designing and editing SVGs.
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Edi Life OS – self-hosted life dashboard with an MCP server for AI
Show HN A self-hosted personal dashboard that integrates an MCP server for AI-driven life management.
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TerrainSR – fast, realistic heightmap upscaling model
Show HN AI model that upscales low-res terrain heightmaps into sharp, realistic detail.
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I Put an AI Agent on a Nokia 110
Show HN Runs an AI agent on a Nokia 110 feature phone via SMS commands.
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K10s – A Clickable Kubernetes TUI (Go, Bubble Tea)
Show HN Mouse-clickable terminal UI for managing Kubernetes clusters built with Go.
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Bigwords.page – Turn any screen into a sign. The URL is the app
Show HN Display large text on any screen instantly by typing it into the URL.
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Terse, a Claude Code plugin that halves reply length by cutting filler
Show HN A Claude Code plugin that strips verbose filler to make AI replies 50% shorter.
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Pinrail – A desktop inbox where coding agents wait for your review
Show HN A desktop app that queues AI coding agent tasks for human review and approval.
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Agent.reviews – Where AI agents read and write reviews on tools
Show HN A platform where AI agents autonomously read and write reviews on tools.
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Durable Actors – OSS Durable Objects with configurable compute
Show HN Build stateful, long-lived actors with configurable backends, inspired by Cloudflare Durable Objects.
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A walkable 3D art history museum built from Wikipedia
Show HN Explore art history interactively in a 3D museum powered by Wikipedia data.
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Procinsh – A 3D Linux process inspector
Show HN Visualize Linux processes and their relationships in interactive 3D space.
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AstroHelm – Use your phone camera to aim a telescope or telephoto lens
Show HN Align telescopes and telephoto lenses precisely using your smartphone camera.
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NanoMuse – An open-source AI agent for your phone and computer
Show HN Open-source AI agent that runs locally on mobile and desktop devices.
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I turned my iPhone and a $20 smart plug into an f-stop timer
Show HN Control darkroom enlarger exposure times using iPhone and a cheap smart plug.
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Parseable, an open observability datalake, handles 100M time-series/min
Show HN Open-source log analytics platform ingesting 100M time-series per minute at scale.
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Jotbus – a shared encrypted scratchpad for coding agents
Show HN A secure, shared notepad letting multiple AI coding agents exchange data.
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Entombed in a Raycaster
Show HN A deep dive into recreating the Atari 2600 game Entombed using raycasting.
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Photoc – Command-line tools for photographers
Show HN CLI toolkit for photographers to organize, rename, and process images.
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Pumpkins.sh – claim, carve, and display a pumpkin to the world
Show HN A fun Halloween site to claim, carve, and share your own virtual pumpkin.
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Nightwatch – a Mac menu-bar app that tells you when tonight is clear
Show HN Mac menu-bar app that shows tonight's cloud cover forecast for stargazing.
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Minigraf – An embedded, bi-temporal graph database in Rust
Show HN Embedded graph database with bi-temporal data tracking, built in Rust.
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Glashütte Trash Clock – A 30-minute pendulum clock made from trash
Show HN A handcrafted pendulum clock built from discarded junk with a unique 30-minute cycle.
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AI search for every photo and every frame of video on macOS
Show HN Search all your photos and video frames on macOS using AI-powered semantic search.
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Build with Python – a beginner course where your code draws
Show HN Learn Python basics by writing code that creates visual drawings on screen.
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Thoreau BASIC – What if BASIC hadn't gone out of fashion?
Show HN A modern BASIC language reimagined as if it never fell out of favor.
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Pi pod – Run your pi coding agent in sandboxes on your own server
Show HN Self-host sandboxed environments to run the pi coding agent on your own server.
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Use all Codex Plugins inside Pi
Show HN Connect and run Codex plugins seamlessly within the Pi AI assistant.
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Our space game has a built-in RISC-V emulator that runs Linux
Show HN A space game featuring an embedded RISC-V emulator capable of booting Linux in-game.
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Graphene – Data analysis toolkit for your coding agent
Show HN A toolkit that gives coding agents powerful data analysis capabilities.
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Offrun – manage every coding agent from one workspace
Show HN Unified dashboard to control and monitor all your AI coding agents in one place.
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Our space game has a built-in RISC-V emulator that runs Linux
Show HN A space game featuring an embedded RISC-V emulator that boots real Linux.
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Made an open-source Lego AI generator
Show HN Generate Lego models using AI with this open-source LDraw-based tool.
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Pyxel – A Python retro game engine with built-in art and sound editors
Show HN Create 8-bit style games in Python with integrated pixel art and chiptune tools.
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Audionaut – an open-source cross-platform multitrack audio editor
Show HN Open-source desktop app for editing multiple audio tracks across platforms.
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What 482 hospitals charge vs. what insurers pay, from their own files
Show HN Compares hospital list prices against actual insurer payments using official data.
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Giving Opus 5.5 a simulated paint canvas
Show HN An interactive experiment letting Claude Opus 4.5 paint on a virtual canvas.
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Breadcrumb, record everything on your mac + context manager for AI
Show HN Captures everything on your Mac and feeds relevant context to AI tools.
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Janus – Go binary that runs GGUF models via Vulkan on AMD/Intel/Nvidia
Show HN Run GGUF language models on any GPU using Vulkan with this lightweight Go binary.
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Rhun, an open-source code editor written in assembly
Show HN A lightweight code editor built entirely in x86 assembly language.
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Strata – an expressive semantic layer that can say no to your LLM
Show HN A semantic layer that enforces data rules and rejects invalid LLM queries.
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Yantra – an LALR(1) parser generator for C++
Show HN Generate efficient LALR(1) parsers for C++ from grammar definitions.
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Lofi Cities – Pixel-art city nights with browser-generated lofi
Show HN Relaxing pixel-art cityscapes paired with AI-generated lofi music in your browser.
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Sarala – An open-source WYSIWYG Markdown editor
Show HN A free, open-source editor that lets you write Markdown visually without seeing raw syntax.
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Lathoa, a math app for kids where the AI is wrong on purpose
Show HN Kids practice math by catching and correcting intentional AI mistakes.
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PaperMono, e-ink fridge magnet shopping list with mobile web page
Show HN An e-ink fridge magnet that syncs your shopping list via a mobile web page.
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Jev Plays Pokémon Red
Show HN Watch an AI agent autonomously play Pokémon Red in your browser.
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Ledge.sh – Runnable Markdown Notes
Show HN Write Markdown notes with embedded commands you can run directly in-browser.
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JBR-001 – An open-source 3D printable desktop robot
Show HN Arduino-powered desktop companion robot you can 3D print and build yourself.
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A working 3D model of an Enigma machine
Show HN Interactive 3D simulation of the WWII Enigma encryption machine in your browser.
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Dental Scope – Interactive 3D dental anatomy
Show HN Explore human teeth and jaw structures through interactive 3D models for dental education.
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Parrot – Open-Source Smart Meeting Recorder with Co-Pilot on Mac
Show HN Open-source Mac app that records meetings and offers AI co-pilot assistance.
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Using 2D DFT, dithering, etc. to maximize eInk manga image quality
Show HN CLI tool converting manga/comics to eReader formats with optimized image processing.
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NSL – WSL for Linux
Show HN Run Linux programs inside Linux using a Windows Subsystem-like layer.
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Real-time Solar System with 526k asteroids and all tracked satellites
Show HN Interactive 3D visualization of our solar system with live asteroid and satellite tracking.
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I built a free Burp/Caido alternative but, zero setup - API Testing
Show HN A free, zero-setup API testing tool that rivals Burp Suite and Caido.
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TurboGPT: train 22KiB transformer in 13s
Show HN A lightweight GPT implementation that trains a tiny 22KiB transformer model in just 13 seconds.
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HN.watch – Videos of all Hacker News posts
Show HN Watch YouTube videos linked in Hacker News posts, all in one place.
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Destroy Any Website with Stickman
Show HN Send a stickman loose on any webpage to smash and destroy its elements.
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Jevstiller – Distill Jev into a local model, with a disagreement bound
Show HN Distills the Jev model locally while enforcing a formal disagreement bound guarantee.
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Free alternative to graphics design giants
Show HN A free online graphic design tool rivaling Canva and Adobe Express.
Oct 2026 TOP 10
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Bigwords.page – Turn any screen into a sign. The URL is the app
Show HN Display large text on any screen instantly by typing it into the URL.
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Real-time Solar System with 526k asteroids and all tracked satellites
Show HN Interactive 3D visualization of our solar system with live asteroid and satellite tracking.
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Let your AI agents paint big arrows, boxes and text on your screen
Show HN A tool that lets AI agents draw visual overlays like arrows and boxes on screen.
-
Giving Opus 5.5 a simulated paint canvas
Show HN An interactive experiment letting Claude Opus 4.5 paint on a virtual canvas.
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Lofi Cities – Pixel-art city nights with browser-generated lofi
Show HN Relaxing pixel-art cityscapes paired with AI-generated lofi music in your browser.
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Jev Plays Pokémon Red
Show HN Watch an AI agent autonomously play Pokémon Red in your browser.
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Glashütte Trash Clock – A 30-minute pendulum clock made from trash
Show HN A handcrafted pendulum clock built from discarded junk with a unique 30-minute cycle.
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Quake ported to safe Rust, playable in browser
Show HN Classic Quake rebuilt in safe Rust and compiled to WebAssembly for browser play.
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HN.watch – Videos of all Hacker News posts
Show HN Watch YouTube videos linked in Hacker News posts, all in one place.
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Making a flexible "neon" t-shirt with LED filaments
Show HN A DIY guide to building a wearable neon-effect shirt using flexible LED filaments.