1. Show HN: I built an interactive HN Simulator (news.ysimulator.run)
    23 hours ago by johnsillings (438 points)
    197
  2. Show HN: OCR Arena – A playground for OCR models (ocrarena.ai)
    4 days ago by kbyatnal (189 points)
    57
  3. Show HN: Fractalbits – S3 compatibe store，1M iops p99～5ms，using Rust and Zig (github.com)
    2 hours ago by thomas_fa (6 points)
    0
  4. Show HN: Sparse Matrix-Vector Multiplication that works at 30–90% sparsity (github.com)
    2 hours ago by vlejd (3 points)
    1
  5. Show HN: Deft-Intruder – Real-time malware detection daemon for Linux (github.com)
    2 hours ago by 539hex (2 points)
    0
  6. Show HN: Datamorph – A clean JSON ⇄ CSV converter with auto-detect (datamorphio.vercel.app)
    4 days ago by sumit_entr42 (19 points)
    6
  7. Show HN: We cut RAG latency ~2× by switching embedding model (myclone.is)
    9 hours ago by vira28 (12 points)
    3
  8. Show HN: BTreePlus – A cache-optimized B+Tree engine for .NET faster than SQLite (nuget.org)
    4 hours ago by staloriana (2 points)
    0
  9. Show HN: Search London StreetView panoramas by text (london.publicinsights.uk)
    4 days ago by dfworks (37 points)
    13
  10. Show HN: Cynthia – Reliably play MIDI music files – MIT / Portable / Windows (blaizenterprises.com)
    1 day ago by blaiz2025 (85 points)
    29
  11. Show HN: Stun LLMs with thousands of invisible Unicode characters (gibberifier.com)
    1 day ago by wdpatti (188 points)
    103
  12. Show HN: I wrote a minimal memory allocator in C (github.com)
    1 day ago by t9nzin (131 points)
    30
  13. Show HN: Hypercamera – a browser-based 4D camera simulator (dugas.ch)
    6 days ago by chronolitus (15 points)
    4
  14. Show HN: How I think tabs should be managed in a terminal (v0.app)
    6 hours ago by novoreorx (3 points)
    0
  15. Show HN: BreakToGoal – A planner calendar that break big goals into tasks (breaktogoal.com)
    8 hours ago by jtnt101 (2 points)
    0
  16. Show HN: Colonet – Anonymous forum, no sign-up needed (revantoa.workers.dev)
    8 hours ago by mvphauto (3 points)
    0
  17. Show HN: Supabase-Test – Fast Isolated Postgres DBs for Testing Supabase RLS (npmjs.com)
    4 days ago by pyramation (28 points)
    10
  18. Show HN: Virtual SLURM HPC cluster in a Docker Compose (github.com)
    5 days ago by ciclotrone (56 points)
    12
  19. Show HN: Axe - A Systems Programming Language with Builtin Parallelism and No GC (axelang.org)
    22 hours ago by death_eternal (13 points)
    0
  20. Show HN: I built an interactive map of jobs at top AI companies (map.stapply.ai)
    23 hours ago by kalil0321 (12 points)
    4
  21. Show HN: Build the habit of writing meaningful commit messages (github.com)
    2 days ago by Aplikethewatch (109 points)
    131
  22. Show HN: The Wiki Game - reach target Wikipedia page by clicking hyperlinks only (apps.apple.com)
    11 hours ago by frayo44 (3 points)
    1
  23. Show HN: I wrote my lecture notes in Typst (github.com)
    12 hours ago by subtlemuffins (3 points)
    0
  24. Show HN: Forty.News – Daily news, but on a 40-year delay (forty.news)
    2 days ago by foxbarrington (436 points)
    176
  25. Show HN: Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker (wealthfolio.app)
    4 days ago by a-fadil (671 points)
    213
  26. Show HN: Radius.today – Local-first personal CRM (radius.today)
    13 hours ago by Xiaoyao6 (3 points)
    2
  27. Show HN: Kibun (気分) – a decentralized status.cafe alternative I made (kibun.social)
    14 hours ago by lakshikag (4 points)
    0
  28. Show HN: Image to STL – Free AI-powered image to 3D printable model converter (imagetostl.org)
    15 hours ago by Ethanya (3 points)
    0
  29. Show HN: TX-2 ECS – A web framework that treats your app as a world (tx-2.dev)
    16 hours ago by iregaddr (4 points)
    0
  30. Show HN: My first published app – track contraception ring cycle (apps.apple.com)
    17 hours ago by matsucks (2 points)
    0
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