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 was tired of opening 2 tabs for every HN link, so I made a userscript ( github.com/twalichiewicz ) 336 points by twalichiewicz 13 hours ago | 99 comments 2. Show HN: Experiments with Weather Data ( strataweather.com ) 2 points by chrisfreder 11 minutes ago | discuss 3. Show HN: Vimgolf.ai – Learn Vim by playing through a map of levels ( vimgolf.ai ) 13 points by nickandbro 2 hours ago | 6 comments 4. Show HN: ElNinoLive – live tracker for the 2026–27 El Niño ( elninolive.com ) 2 points by slavkovl 18 minutes ago | discuss 5. Show HN: JungOcean – Free personality test with no email gate and local storage ( jungocean.com ) 4 points by LeoLeaS 21 minutes ago | discuss 6. Show HN: Steadra.dev is for automated QA with no effort ( steadra.dev ) 2 points by anghelcontiu 24 minutes ago | 1 comment 7. Show HN: I used D3/React to transform raw GitHub data into an interactive map ( github.com/thierryrakotomanana ) 4 points by ThierryRakt 1 hour ago | discuss 8. Show HN: Expose Your APIs to Agents Without Losing Control via Koodisi MCP ( koodisi.com ) 3 points by theashishmaurya 1 hour ago | 1 comment 9. Show HN: Roamr – a CLI that picks the best saved WiFi, and tells you why ( github.com/sourabh-khot65 ) 2 points by sourabh65 1 hour ago | 1 comment 10. Show HN: Miget – Free cloud hosting for open source projects (no star minimums) ( miget.com ) 3 points by Ankiit111 1 hour ago | discuss 11. Show HN: XY – A Fast, composable, GPU-accelerated interactive plotting library ( github.com/reflex-dev ) 126 points by apetuskey 20 hours ago | 46 comments 12. Show HN: How far do I have to go to run into 100k people? ( imjasonh.github.io ) 69 points by ImJasonH 16 hours ago | 46 comments 13. Show HN: Lean4 Datalog DSL Based on Google Zanzibar for AI Projects ( github.com/jagg-ix ) 16 points by kbradero 9 hours ago | 2 comments 14. Show HN: Where conscious events get found, booked and hosted ( conscious-events.com ) 2 points by wowinter15 2 hours ago | discuss 15. Show HN: Skewrun – fix Kerberos clock skew per-process, no root (open source) ( github.com/jvbotelho ) 2 points by jvbotelho 2 hours ago | 1 comment 16. Show HN: Firemaps Spain – Live wildfire map with wind flow for ES and PT ( firemapsspain.online ) 14 points by kalamarico 7 hours ago | 4 comments 17. Show HN: Learning Rust by writing a Markdown to HTML compiler ( andreadimatteo.com ) 23 points by deotman 10 hours ago | 3 comments 18. Show HN: Mcploitable – Vulnerable MCP Servers for the OWASP Agentic Top ( github.com/agilealligator ) 3 points by agileAlligator 3 hours ago | 2 comments 19. Show HN: Video Upscaler – AI video upscaling up to 4K ( videoupscaler.video ) 2 points by toolina 3 hours ago | discuss 20. Show HN: Wikipedia Importance Map. Every article sized by its pagerank on a map ( tomthe.github.io ) 2 points by tomthe 3 hours ago | discuss 21. Show HN: Formally verified 3D CSG: Trust 93 lines spec, not 1000 lines AI code ( github.com/schildep ) 110 points by permute 22 hours ago | 48 comments 22. Show HN: EarPal – private multi-speaker interpreter, on-device, 30 languages ( apps.apple.com ) 2 points by alEscarcha 3 hours ago | discuss 23. Show HN: Recipeviz, make compact cards for your recipes ( hherman1.github.io ) 3 points by hherman2 3 hours ago | discuss 24. Show HN: Scala Tutorials – interactive Scala 3 lessons in the browser ( scalatutorials.com ) 80 points by eranation 1 day ago | 35 comments 25. Show HN: I made a convenient file sharing service (NOT A STARTUP) ( coldfiles.dev ) 2 points by bunchy7s 4 hours ago | 1 comment 26. Show HN: Game Boy on the Beam – A DMG Emulator in Pure Elixir ( gb-dmg.live ) 5 points by douglascorrea 5 hours ago | discuss 27. Show HN: Yap – OSS on-device voice dictation for macOS with no model to download ( github.com/frigadehq ) 102 points by pancomplex 1 day ago | 42 comments 28. Show HN: tale.fyi, we deserve a home for fiction ( tale.fyi ) 71 points by samuelcole 22 hours ago | 66 comments 29. Show HN: Magpie, a CLI to Turn Your AI Agent into a Bookkeeper ( github.com/kyle-visner ) 8 points by kvisner 12 hours ago | discuss 30. Show HN: Cynative – Read-only CLI in Go that explains your live infrastructure ( github.com/cynative ) 16 points by szin 19 hours ago | 4 comments More Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact Search: