Hacker News / Show HN

Show | Hacker News Hacker News new | past | comments | ask | show | jobs | submit login Please read the Show HN rules and tips before posting. You can browse the newest Show HNs here . 1. Show HN: I've built a words game based on binary search ( hilogame.cc ) 36 points by ludovicianul 3 hours ago | 34 comments 2. Show HN: Sentinel – open-source QA agent that reads your code before it clicks ( simbastack.com ) 3 points by asenna 45 minutes ago | discuss 3. Show HN: Algotrek – Algorithms visualized, problem shape shifting and a tutor ( algotrek.io ) 2 points by nyggy 1 hour ago | discuss 4. Show HN: Wallflower – A Quiet Social Reader ( thewallflower.app ) 2 points by tldrthelaw 2 hours ago | discuss 5. Show HN: Firefox in WebAssembly ( puter.com ) 231 points by coolelectronics 19 hours ago | 118 comments 6. Show HN: Fireplot – I built a take-home pay map to see if I should leave Belgium ( fireplot.app ) 2 points by lotsoworks 2 hours ago | discuss 7. Show HN: Cortier – your AI negotiates dinner plans with your friends' AIs ( cortier.ai ) 3 points by CortierAI 2 hours ago | discuss 8. Show HN: Companion eBook for The Odyssey audiobook narrated by AI Michael Caine ( github.com/stoilms ) 2 points by stoilms 2 hours ago | discuss 9. Show HN: misa77 - a codec that decodes 2x faster than LZ4 (at better ratios) ( github.com/welcome-to-the-sunny-side ) 151 points by nonadhocproblem 1 day ago | 46 comments 10. Show HN: I built a house-hack calculator that told me to keep renting ( therenthacker.com ) 2 points by dannybrown540 2 hours ago | discuss 11. Show HN: I Built an Accent Changer App ( accentchanger.com ) 3 points by wbemaker 4 hours ago | 7 comments 12. Show HN: One More Letter ( playonemoreletter.com ) 80 points by hmate9 17 hours ago | 52 comments 13. Show HN: Plarza – A social network for personal websites ( plarza.com ) 4 points by sidny 2 hours ago | 1 comment 14. Show HN: Real-Time Microphone Quality Scoring Using Web Audio API ( howdousound.com ) 3 points by tdhopper 3 hours ago | discuss 15. Show HN: Marigold – Get more done with your agent ( marigold.page ) 2 points by fachonrenpure 3 hours ago | 1 comment 16. Show HN: Agenthatch v1.0 – RAG agents, stress-tested with a fake xianxia world ( github.com/agenthatch ) 3 points by EternalRights 3 hours ago | discuss 17. Show HN: OctoCounts – See source line counts directly on GitHub ( octocounts.com ) 2 points by huang4fun 3 hours ago | discuss 18. Show HN: Quatuor – Kick back and watch 4 agents LLM talk to each other (FOSS) ( github.com/yeme-oss ) 4 points by ycosynot 3 hours ago | discuss 19. Show HN: Even Keel – free, no-signup freelance pricing calculators ( evenkeelhq.com ) 3 points by evenkeelhq 3 hours ago | discuss 20. Show HN: I kept rewriting scripts for my teams, so I built a visual tool instead ( ipek.run ) 2 points by limandoc 3 hours ago | discuss 21. Show HN: AI-ready free form backend ( formplume.com ) 2 points by danilovilhena 3 hours ago | discuss 22. Show HN: My design portfolio is a Claude agent (no vector DB, no RAG stack) ( blackbook.dk ) 4 points by jeppesc 3 hours ago | discuss 23. Show HN: ClipTunes, string together trimmed YouTube video clips ( cliptunes.app ) 2 points by jhedlund 4 hours ago | 1 comment 24. Show HN: Rackp – a protocol for deriving fault when AI agents cause incidents ( github.com/rackp-io ) 2 points by rackp 4 hours ago | discuss 25. Show HN: E-- – A language you dial between English and Python ( github.com/frmoded ) 26 points by OdedF 17 hours ago | 17 comments 26. Show HN: Local Search Agent – RAG replacement, no embeddings, free tier ( github.com/wiss84 ) 5 points by Wissam-Metawee 4 hours ago | discuss 27. Show HN: Low-latency local LLM runner via OpenJDK Panama FFM (Java 22) ( github.com/projectargus-cc ) 38 points by KingJoker 21 hours ago | 9 comments 28. Show HN:I built an open alternative to Simplify for autoapplying to LinkedIn job ( jobeasyapply.com ) 4 points by workplace_1 5 hours ago | discuss 29. Show HN: Cybara – An open-source AI agent platform built with Bun ( github.com/metaspartan ) 2 points by carsenk 5 hours ago | discuss 30. Show HN: Effort Lab – Same running pace, different heart rate zones ( motraapp.com ) 2 points by timmonty 5 hours ago | 2 comments More Consider applying for YC's Fall 2026 batch! Applications are open till July 27. Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact Search: