Deck-IR – render .pptx to HTML in pure JavaScript, no LibreOffice (darksun113.github.io)
I revived yuiblog.com, Yahoo''s defunct front end engineering blog (derek.io)
Memharness – Bi-temporal memory for AI agents, in one SQLite file (github.com)
Automatically Validate Python Packages (pypi.org)
Attagram, a tiny printer that gives kids a magical daily digest (www.attagram.com)
Push vs. Pull Agent Memory? (github.com)
I built a tool which turns any website into promo video in minutes (www.clickcast.tech)
We cut 60% of tokens from agentic tasks by removing repeated context (parcle.ai)
150M Mandarin transcription model with real-time metadata detection (huggingface.co)
GitCredit – give yourself a pat on the back (gitcredit.dev)
Mindwtr – Free, open-source, local-first GTD app for all platforms (github.com)
Ubercookie – A live demonstration of how websites can track you (ubercookie.xyz)
Gptbased – LLM leaderboard that emails you when to switch (gptbased.com)
Local personal data redaction for any AI tools (github.com)
Draft, Open Source Agent Context Sync/Collaboration (github.com)
Rank scratch tickets in your state by expected value (scratchstats.ai)
A world cup app built by football lovers (testflight.apple.com)
I built a smart screen recording macOS (screeen.co)
An open source job search plugin for Claude Code (github.com)
Lastwordonearth.com (lastwordonearth.com)
Cowork/Codex DOCX plugin. Uses 2x fewer tokens than the docx skill (github.com)
Pitch-by-pitch baseball simulation app to simulate games and seasons (baseball.chesterton.tech)
A free CLI coding agent, powered by ads (freebuff.com)
ML condenses billions of logs into a tiny snapshot your LLM can debug (github.com)
Criterion Closet as a website – pull any of 1,247 films off the shelf (the-criterion-closet.vercel.app)
Righthand – Autonomous AI assistants with skills, goals, and a CLI (www.rigthhand.ai)
WaylandClientKit – a Swift Wayland client substrate for Linux (github.com)
Canipls – see caniuse.com global support percentages as you type (github.com)
Reyn – local-first AI that journals and recalls your work (www.usereyn.com)
Tablething – local-first database client with BYOK AI (tablething.com)
Play the US President in the real current week; your timeline forks (playpotus.com)
Chatty Lingo – A language practicing app (www.chattylingo.com)
I built a spelling app for kids with my 7-year-old (spellabee.com)
Any Search, One API (searchrouter-demo.vercel.app)
A Universal Matching Engine (www.jeanmemory.com)
OptiSYS – an open source Windows optimizer that isn''t snake oil (dttdrv.xyz)
Matrix Engine WGPU – focus on mobile] (maximumroulette.com)
ESP32 512kB – Tailscale, English to Python LLM and 8 containers local (punnerud.github.io)
Tabia – The first free, open-source chess opening trainer (github.com)
Cost efficient version control system for Gaming Assets (github.com)
Koala: Cross-Substrate Tactical Representations in Graph-Based Go [pdf] (github.com)
Selora – local model for Home Assistant (github.com)
RealNear – nearby places ranked by quality score, not ads (realnear.app)
Leakproof – local secret-egress firewall for Claude Code/Cursor/aider (github.com)
Vessel Browser – Open-Source AI-Native Browser with Skills (github.com)
A distributed computing project for finding primes of the form k·2n1 (primecrunch.com)
I turned 250 movies into wormholes (inside.thecolorsofmotion.com)
Learn math as a tour of duty in a Martian Navy (martiannavy.com)
Models Pie – LLMs ranked by fast / cheap / good tradeoffs (modelspie.com)
ReplyVoice – mic overlay that transcribes into any app (Android PC) (play.google.com)
No-Nonsense Table of FIFA World Cup 2026 Top Scorers and Assist Leaders (tablerat.com)
Yomi – Read any web page, or a whole website, into clean Markdown (github.com)
Tamper evident audit logs for LangGraph/CrewAI agents (github.com)
A locally hosted version of Google''s internal SnipIt tool (github.com)
Visual Agents with Code Mode (www.vlm.run)
MizAI LLM detection of price anomalies in public procurement for Greece (mizai.gr)
Cotect – a fast code inspector for agent era (open source) (cotect.dev)
10k harmonized time-series datasets of African data (huggingface.co)
EVMist – Client-side builder for custom persistent EVM dashboards (evmist.io)
Live-updating, information-dense World Cup dashboard and simulator (worldcupdash.com)
Our Claude Code Plugin Routes Lightweight AI Tasks to Specialized SLMs (medium.com)
bb, an agentic IDE that can control itself (github.com)
Minecraft AI Agent for mods and server management (orcaclient.com)
Tmppr – local PR review for AI coding agents (tmppr.com)
AuthPlane – OAuth 2.1 and PKCE authorization server for MCP (github.com)
CtxGov – drop in AI memory files, get an influence-boundary report (ctxgov.github.io)
Relaymux, a tmux-based meta-harness for local coding agents (github.com)
Raise(fn) – fundraising intelligence YC keeps to itself (www.raisefn.com)
Thrivez – A Linktree alternative with a built-in reward wall (thrivez.io)
Save and store you .env vars (envmanager.com)
I made a paid guestbook for the internet (www.internetmonuments.com)
A free dataset, Polymarket''s 5-minute crypto markets, second-by-second (kacho.io)
Mantyx – Batteries included managed agent runtime (mantyx.io)
BookLike – Chrome reader mode with eBook-style page flips (booklike.app)
An 8-bit live gamecast for baseball (ribbie.tv)
The full Minecraft game as an embeddable Framer component (www.framer.com)
Vpod – Tiny Linux sandbox running in WASM (github.com)
Chess bot based on the transformer architecture (github.com)
Upfile – Open-Source File Upload CLI, for Both Agents and Humans (github.com)
I matched 650k SF parking tickets to the block each was written on (curb.guide)
Aihu – durable Web Components an AI agent can drive (full WC framework) (github.com)
Safe database access for AI agents (github.com)
Hosted version of Mathesar, intuitive open source UI built on Postgres (mathesar.cloud)
Dbgsom: A scikit-learn compatible Self-organizing Map (github.com)
Show HN: Cy. An AI coworker that works from Slack (www.neonblue.ai)
A Free Crunchbase Alternative (startupwiki.tech)
Zkit – Go libraries for building agents, not a framework (zarldev.github.io)
Bacon – an ad network that pays developers while their Claude works (geturbacon.dev)
Smooth.video – animate your content, slide by slide, free (smooth.video)
Project Huginn – cheaper AI training on idle GPUs (www.projecthuginn.com)
Regentix – Block destructive MCP tool execution using Rego (github.com)
In-browser Python/Pandas/Git practice with animated Git simulator (practice.lernerpython.com)
TrendHawk – AI pipeline that finds ideas from 25 subreddits HN doesn''t (trendhawk.substack.com)
Deputies (open-source background agent control plane) (deputies.dev)
OctoPunk – a full-featured, AI-integrated GitHub client (www.octopunk.io)
Artifacta – Durable storage for agent outputs (artifacta.io)
Stop your AI agents from approving their own work (github.com)
StumbleUpon Is Back (Kinda) (www.stumbleagain.com)
Agenthatch – Compile any skill into a standalone Python agent (github.com)
Tyto – find where audio breaks your voice-agent calls (call-analysis.ai-coustics.com)
FusionHarness – An Open-source Mixture-of-Agents compound-model server (github.com)
Ratchet – CDI-native persistent job scheduler for Jakarta EE (github.com)
How to Read a Dosa Menu (dosadecoder.com)
Infinite – query your GA4/Stripe/PostHog data locally, on your machine (github.com)
Agentspace – long-running YOLO agent sessions in Docker (github.com)
Quake ported to 3D CSS (no WebGL) (cssquake.com)
TTT – A terminal IDE with standard keybindings, no modal editing (tttedit.dev)
Analog military plane spotter as a new tab extension (chromewebstore.google.com)
Ember – self-hosted RSS reader in a single Go binary, AI is optional (news.ycombinator.com)
ITransBook,a Local-First AI Document Translation Tool (www.itransbook.com)
AptSelect – A local LLM client for parallel testing and evaluation (aptselect.com)
AutomatiQ – Reverse-Engineering Agent for the Web (github.com)
Thulr – a spoiler-free wiki for fantasy and sci-fi novels (thulr.co)
Pocket DB – a single-file append-only document store for Node.js (github.com)
Microcrad – Micrograd Reimplemented in C (github.com)
"Grid" – a spec-driven framework for coding agents (github.com)
LinguaX – a native macOS mouse enhancer (Logi Options alternative) (linguax.app)
Alpenglow, a Linux distribution that boots to login in 0.6s (github.com)
A tool that scores your OpenAPI spec for test-generation readiness (resources.kusho.ai)
Mira – Open-source and self-hosted AI code reviewer (github.com)
Transcribez,Transcription for Kenyan English and Swahili (www.transcribez.xyz)
A knowledge graph of 15,941 math states – proof as path-finding (ansumandas441.github.io)
Web-based Nürburgring driving game – custom physics, synthesized sound (drive-game.pages.dev)
Hextrap – Package Firewall with OPA Policies and MCP Support (hextrap.com)
Ferrix AI – Agentic Product Management Platform (ferrix.ai)
I made a spoiler-free World Cup tracker with a Test Management skin (worldcup.getbestest.com)
TermType – a terminal typing game where words fall like Space Invaders (github.com)
[[[hinge-ts]]] I reverse engineered Hinge''s API (github.com)
Stegcore – steganography and steganalysis in one Rust binary (github.com)
WPF grade canvas UI framework for the web (news.ycombinator.com)
Kaupang – a push-based deploy CLI, now with a drag-and-drop builder (github.com)
Yet Another News Reader (boomerang-news.com)
Multiplayer Space Game (voidhorizon.net)
Noject – menubar app to stop drive ejections on macOS (scaleninja.com)
OpenC6 BIOS – A PC-like bare-metal bootloader and OS for ESP32-C6 (github.com)
Jobs Core API – structured job data from 9,800 feeds, without scraping (kaleh.net)
A dev-news reader in 100% Kotlin Multiplatform (Android, iOS WIP) (github.com)
AI Agent Skills to Grow Your Open Source Project (github.com)
DBNova – A database interaction tool for developers (dbnova.ruiransoft.com)
RewardHackBench: Using sandboxes to stop agents from cheating (github.com)
OrbitSuite – Deterministic infrastructure for AI agent fleets (orbitsuite.cloud)
Digital inspection reports for any rental property (kamerinspectie.nl)
OpenTalk2HTML – Convert video meeting transcripts to readable HTML (github.com)
Noema64 – an open-source LLM chess engine (still in beta though) (github.com)
Open-Source RAG Security Kit for Zero-Trust Retrieval (blog.aetherguard.ai)
I built 184 free browser tools – PDF, image, dev, AI tasks, no upload (brevio.pro)
High-Res Neural Cellular Automata (cells2pixels.github.io)
Open-source 3D Cell Models Pipeline (www.lorea.app)
Cerberus – PromQL/LogQL/TraceQL Query APIs Backed by ClickHouse (github.com)
Tocka – A million-pixel canvas like R/place, but with real economics (tocka.rocks)
Xpenser – self-hostable personal finance tracker with MCP access (github.com)
CLI Integrated Latex Editor (github.com)
Stego.Image – Hide any file inside a PNG image in the browser (stegoimage.pages.dev)
Day-ahead river discharge forecasting using USGS and ERA5 data (sentinel-forecasting.com)
ParaMetal: A realtime 3D heat transfer simulation (github.com)
Mini-film – open-source tool for batch processing and reviewing RAWs (github.com)
Registry for Ant and Everyone Else (ants.land)
Fig0 – 0-Manual AI Scientific Figure and Illustration Generator (fig0.ai)
Product Validation (ideas.trk7.app)
Convert the raw HealthKit DB from an iPhone backup to SQLite (github.com)
IAGlobal – A multi-agent cognitive architecture inspired by biology" (github.com)
Whissle Gateway – Multi-Modal Voice AI in a 500MB Local Docker (whissle.ai)
Hybrid Coding Arena – reproducible local vs. cloud vs. hybrid coding (github.com)
Loomcycle – a sidecar runtime for AI agents (Go binary, Apache-2.0) (github.com)
SciFigureAI – AI figure maker for research papers (scifigureai.com)
Otty – a native and beautiful terminal emulator (otty.sh)
Building a Stateful AI Agent (github.com)
penguinAI – the c.ai alternative focused on privacy, no self-hosting (penguinai.pages.dev)
Startup research website, crunchabse and Product Hunt and grokipedia (startupswiki.vercel.app)
I Built a Free Text Based Audio Editor (audioeditor.pro)
Easy text to social media cards platform (cards.tinygods.dev)
Kevin – Claude talk less. Save Money (github.com)
Sley – a native-Rust Git engine, benchmarked and verified against Git (heddle.sh)
Fixing grammar and spelling using on-device Apple Foundation Model (github.com)
Odocs.co – multiplayer draw.io and docs for agent and human collab (odocs.co)
oh-my-reddit – beautiful reddit threads, live in your terminal (github.com)
Reticle – The map your infrastructure operators deserve (reticleops.com)
The Oct Programming Language for scientific programming (github.com)
The Ruby AI Newsletter (rubyai.beehiiv.com)
Numax - a portable runtime for distributed apps (github.com)
Private Markets SEC Filings Index (search.stillhousedata.com)
PromptShark – MitM proxy, C loop detector and replay for AI agents (github.com)
Karpenter Provider for Hetzner (paperclip.inc)
Steam City – Your Steam game library as a 3D city (thesteamcity.com)
Audit your installed GitHub CLI extensions (sjh9714.github.io)
Pacwich – lightweight new monorepo tooling on top of Bun, NPM, or pnpm (pacwich.dev)
My Mac shoos me away every time I bite my nails (github.com)
cuTile Rust: Safe, data-race-free GPU kernels in Rust (github.com)
ctx is now open-source, a hackable desktop workbench for coding agents (github.com)
Tally Marks – an app for counting with a handwritten look & feel (tallymarks.app)
I''m 15, built an AI that watches your screen and acts before you ask (github.com)
Next.js boilerplate with Better Auth, PostgreSQL and Shadcn/UI (github.com)
Ril: a parallel data streaming tool for Python (github.com)
Write Your GitHub Actions in TypeScript (github.com)
Dopamine – An MIT-Licensed Open-Source Cross-Platform Effects Library (github.com)
VoiceDraw – Talk system design out loud, the diagrams draw themselves (voicedraw.com)
Dev-friendly native OTel: only OSS stateful, on-the-wire Observability (news.ycombinator.com)
Rapunzel – a tree-style tab terminal emulator for Codex Claude Gemini (github.com)
Azure DevOps TUI Management Style (github.com)
Almost all of MonsterWriter''s back end is open source (www.monsterwriter.com)
Cpt-city, Xkcd colour schemes (phillips.shef.ac.uk)
Ctx, save tokens by loading only the relevant tools (github.com)
visual hcker.news extension – story preview images for HN headlines (github.com)
HckrNight now ships as a mobile app (iOS/Android) (hckrnight.com)
Pen and paper resource development game (www.jameshylands.co.uk)
Ito – Code reviews that run code (www.ito.ai)
I made Oregon Trail for founders (paste your company URL) (foundertrail.vercel.app)
VulnFeed – 9 security tools your AI agent can call (MCP server) (vulnfeed.novadyne.ai)
I built an AI that calls you, interviews you and publishes your content (heybono.ai)
Skill Atlas – Local, visual IDE for Agentic Skills (BYOK, no back end) (github.com)
A policy gate that runs before your AI coding agent''s tool calls (sigmashake.com)
Silver Music Notifier – get notified about your artists'' new releases (github.com)
JerrySniffs – MCP Server (and API''s) for web and social media search (jerrysniffs.online)
Microlearning apps with a TikTok-style feed to beat doomscrolling (usescroll.app)
Kintsugi – a local-first safety net for AI agents and humans (github.com)
CredScore – Deterministic wallet risk scoring, no model in the path (www.credscore.us)
Building Your Own Coding Agent on Top of Zot – Meet Coil (www.patriceckhart.com)
NumUp – A Daily Math Puzzle (vasanth.fun)
Memento – Self-hosted agentic search and LLM wiki over your email (news.ycombinator.com)
Dino – An AI coding agent that keeps you in the loop (smartdino.dev)
TreeTrace, git records what changed; this records how you steered (github.com)
Sentinel – prevent duplicate execution using Postgres (github.com)
Docket – Semantic search over your local files, runs in the browser (docketapp.netlify.app)
In Browser semantic wallpaper search over 16k wallpapers (web-inky-ten-60.vercel.app)
Shivvr – Ephemeral semantic embedding and cognitive agent service (shivvr.nuts.services)
Claireon – MCP Server for Unreal Editor (github.com)
INT21 – Self-Improving PTX Kernel Factory (int21.ai)
NIS2 Readiness Check (dmarcguard.io)
Agent Harness Lab – compare agent frameworks with swappable tools (github.com)
BlitzGraph – Supabase for graphs, built for LLM agents (blitzgraph.com)
FlatHawk – Like Google Image search but for finding a house or flat (flathawk.com)
Ledgerline – local-first finance MCP server (github.com)
An AI resume tool that never invents experience you didn''t have (hiredcopilot.com)
Alternative way to do remote codex via NovaScale with builtin Tailscale (apps.apple.com)
Infer0 – do AI apps need subscriptions? (infer0.com)
Absolute best option for networkmanager in Rust (github.com)
Kinetk – Multimodal intelligence API and MCP for grounding agents (www.kinetk.ai)
kv: good for pipes, data exchange and configurations (github.com)
Replicating a Harvard study on AI''s employment impact – Autonomously (news.ycombinator.com)
Telemetry engine to audit ledger integrity and race conditions (omnisyncqa.netlify.app)
K8s watcher that investigates incidents and opens PRs (it can''t merge) (github.com)
Wattfare – LLM API that''s paid by users, not dev (wattfare.com)
I built a philosopher-inspired thinking style quiz (pilnmeness.com)
Polymr – A Platform for Controllable Execution and Adaptive Interaction (polymr-platform.github.io)
Hackers for Granny (defense against industrialized elder fraud) (professorsigmund.com)
Offload, cross-device handoffs for Claude Code and Codex (github.com)
VibeSH – Fully Hallucinated Terminal Shell (codeberg.org)
git-lrc – Free, Micro AI Code Reviews That Run on Git Commit (github.com)
AgentPace – Forecast when your coding agent usage will run out (festudio.net)
WhatsApp Clone, but Decentralized with P2P Messaging (enkrypted.chat)
The Dictionary Game (Fictionary/Balderdash) as a Daily Puzzle (dictionarypuzzle.com)
MockNest Serverless – Bedrock-Assisted API Mocks on AWS Lambda (github.com)
Cron-naturally – plain English to cron and back, in the browser (github.com)
dbconform – stateless schema drift repair, no migration history (news.ycombinator.com)
1Password-Style Quick Access for Proton Pass on macOS (github.com)
Satd – a Bitcoin full node in Rust (github.com)
A site for generating AI videos with Seedance 2.0 Mini (seedance2-mini.com)
Red and Black Knights Sandbox (chrismo.github.io)
I made an open-source free tasks app that looks good (github.com)
Marshal – behavioral supply-chain scanner for JVM dependencies (github.com)
Dashboard for Your Work Laptop (github.com)
NakshGuard – on-prem proxy that stops AI agent loops (github.com)
Promcap – cap Prometheus metric cardinality before it OOMs your stack (github.com)
WASM scanner to debug Postgres deadlocks without leaking SQL (stackengine.dev)
AWF – run parallel AI coding agents, each in its own Docker workspace (github.com)
OpenACA – security scanner for AI agent stacks (MCPs,skills,plugins) (github.com)
ArXiv Scholar – An Open-Source RAG System for AI Research Papers (github.com)
Quollix – self-host applications with low administration effort (quollix.org)
AutomatiQ – Write Automations/Scrapers for any site, just by browsing (shiny-sushi-116.notion.site)
Codyssey – control system programming game (open beta) (codyssey.andersource.dev)
I hated sales, so I built a self-driving sales agent (try.wayy.ai)
Voice Age Verification (agewarden.ai)
Portaltext, grand strategy-style recursive tooltips for the web (portaltext.com)
Allelix – Annotate your DNA against 7 public databases offline (github.com)
Auto-triage customer emails to Linear with Claude and pydantic-AI (github.com)
The Brain – self-hosted workflow runner that calls any MCP server (github.com)
Pair your iPhone to your own Ollama over Tailscale with a QR scan (github.com)
Camel Calculator – an AI reboot of the "how many camels?" joke (camelmaxxing.com)
Babysit – let coding agents operate a TUI (github.com)
Dao Browser – An Opinionated Browser. With AI Agent, BYOK (github.com)
WebCap – Reusable web capabilities for AI agents (github.com)
Independent comparison of AI wait-state ad platforms (aiwaitindex.com)
Spin Lab (srijanshukla.com)
AppointMe – open-source .NET SaaS template (modular monolith, DDD) (github.com)
Countrycheck: which country is this point in? (jaakla.github.io)
SeedBase, FK-consistent test data from your SQL/Django/Prisma schema (seedba.se)
Query the Murder – Learn SQL by Solving Agatha Christie Mysteries (querythemurder.com)
Codify – Terraform for Dev Environments (codifycli.com)
Rnet-OAuth-Python – Python lib for user-funded AI API access (github.com)
Write SaaS apps where users control where their data is stored (linkedrecords.com)
Mittr – Webhook delivery on one Postgres (inbound and outbound) (mittr.io)
Brainfuck but with Turtle Graphics (czterycztery.pl)
A prompt generator to help AI agents implement my new email API (emailsdone.dev)
Build a timeline of your experiences and generate tailored job pitches (www.pitchlikethis.com)
Rediscover the Small Web with an AI-Ranked RSS Reader (bubblewire.net)
CoreMCP – MCP Server for On-Prem DBs (github.com)
O(1) Recursive Moving Linear Regression (news.ycombinator.com)
I built a dev diary writes itself (mydev.day)
Hyperbox- 40/month Mac mini rentals (hyperbox.sh)
ProData AI – 14 MCP tools for automated data science (mcpize.com)