Show HN ranking for the past day

  1. I visualized the entire history of Citi Bike in the browser | 28
  2. We built a complete agentic work OS from scratch | 2
  3. Free and local browser tool for designing gear models for 3D printing | 11
  4. KeelTest – AI-driven VS Code unit test generator with bug discovery | 10
  5. Tylax – A bidirectional LaTeX to Typst converter in Rust | 2
  6. An LLM response cache that's aware of dynamic data | 1
  7. A to Z – A word game I built from a childhood road trip memory | 7
  8. Waveform Playlist v5 – Multi-track Web Audio editor (React and Tone.js) | 1
  9. Seapie – a Python debugger where breakpoints drop into a REPL | 1
  10. Unified multimodal memory framework, without embeddings | 2
  11. Luther Enterprise: Dev platform for operating end-to-end mega workflows | 4
  12. RepoReaper – AST-aware, JIT-loading code audit agent (Python/AsyncIO) | 0
  13. bikemap.nyc – visualization of the entire history of Citi Bike | 3
  14. Lean4 proof that SSOT requires definition-time hooks and introspection | 4
  15. Cited AI – AI answers with citations linking to exact source passages | 0
  16. MakeMe – A Makefile tool rewritten from Fish to Go | 0
  17. Modern Fraud Systems Cheatsheet for Intern's | 0
  18. Put Greenland on the Moon (interactive map for size compare) | 2
  19. Workflow automation builder for saving website data | 0
  20. Deep learning without gradient descent, 500 layers, no skip connections | 1
  21. Worldstream – Real-time stream of headlines from everywhere | 0
  22. Prompt Tower – build and visualize your context | 0
  23. PAlignPrims – C++ library for sequence alignment beyond bioinformatics | 0
  24. TierWise – PPP pricing widget for SaaS (Built in 7 days) | 0
  25. Kerns – A Continuous Research Workspace | 0
  26. ADHD Focus Light | 0
  27. ElementaryUI – A Swift front end framework for the browser | 0
  28. DailyWave – a one-task-at-a-time productivity app (open source) | 0
  29. MaduroTrials – Tracking the SDNY indictments and court documents | 0
  30. A RAM-only, end-to-end encrypted P2P terminal chat in Python | 1
  31. Formal Verification via Spectral Geometry (Lean 4) | 1
  32. Audio Isolation with SAM Audio for free | 0
  33. I spent 12 months building a conversational agent for social media | 1
  34. Can you hit replacement? A fertility SIM with cited sources | 1
  35. I built Mike – AI motion graphics | 1
  36. I built a simple "Gemini" watermark remover extension, "Peel Banana" | 0
  37. ScotiaSignal: Public sector intent data for Nova Scotia | 0
  38. YoloForge – Create object detection datasets using Gemini 3 Pro | 0
  39. Claudit – A deterministic contract auditor for identifying weasel words | 1
  40. Metabase-Impact – Find which Metabase questions break before you deploy | 0
  41. Tool for Testing MCP Servers | 0
  42. SHOW HN: I built the Most fancy GitHub Wrapped 2025 with lofi music | 1
  43. Sumoffy (macOS) – Offline Document Intelligence You Can Trust | 0
  44. SpaceXYZ | 0
  45. Clean normalised US equity fundamentals via API (free tier available) | 1
  46. I built a 3D World Map and multiplayer geography game using Three.js | 0
  47. Grammar of Graphics CLI tool made in Rust | 0
  48. Telio – AI agents for call/text support, built on sandboxed lakehouses | 0
  49. I built a tool to stop pretending I understood research papers | 1
  50. LLM-First Personal Knowledge Management | 0
  51. SquareFaceIcon – a tiny "protocol" for consistent square avatars | 0
  52. Notepai – AI assisted online notepad editor | 0
  53. Game Boy Release Timelines | 2
  54. A skill that finds expert methodologies before generating AI skills | 0
  55. Claude Code HUD for VS Code | 0
  56. AgentOS – Self-hosted web UI for managing multiple Claude Code sessions | 1
  57. Enriched HN, LLM-powered topic filtering for Hacker News | 0
  58. A texting-yourself-style note app for capturing unstructured thoughts | 1
  59. AI Swarm v3 – Self-host your own headless AI agents | 0
  60. I upgraded my open source, zero knowledge, self destructing note app | 0
  61. The kissing number theorem predicts particle masses from sphere packing | 4
  62. Startup Simulator – AI Choose Your Own Adventure | 0
  63. AVShack – Linux Live Streaming Server – With Mixing and Multistreaming | 0
  64. Slack bot for channel-owned mention aliases (not org-wide user groups) | 0
  65. An offline first, with state-in-URL, workout planning and tracking app | 0
  66. Prediction Market Aggregator (Prediktion) | 0
  67. A simple way to find open source issues to contribute to | 0
  68. A unified search engine that delivers 3 Wiki articles and 1YT per query | 1
  69. Chess in Hyperbolic Space | 0
  70. PhotoMeh – Upload a car damage photo. Get an instant repair estimate | 0
  71. V.ai: a open source character platform | 0
  72. Shellock, a real-time CLI flag explainer for fish shell | 0
  73. GTKX – React for native GTK4 Linux apps, no Electron | 0
  74. KektorDB – Lightweight, Embeddable Vector+Graph Database Written in Go | 1
  75. How I generate animated pixel art with AI and Python | 1
  76. Arabic Calligraphy Generator – 11 styles, free, no signup | 1
  77. Claude generated code for a 80s vector game engine in HTML+JS | 0
  78. LaTeX → structured ArXiv data for scientific RAG | 1
  79. Flatagents: State machine orchestration with stateless LLM agents | 1
  80. Milkyboard – Synth Keyboard with Milkdrop Visualizer | 0
  81. Party – WebGPU particle system and physics engine and playground | 0
  82. A Bento-based service for reliably streaming usage events into billing | 1
  83. KyubiSweep – Fast, local secret scanner written in Go (visual reports) | 1
  84. Corli – Major update focused on stability and new features | 0
  85. EvalView – Catch agent regressions before you ship (pytest for agents) | 1
  86. A safe CLI to clean up stale GitLab branches (dry-run, CI-ready) | 0
  87. SludgeReport.io – like that other site but AI, Tech, Startup News | 2
  88. Node.js type-safe dynamic config with real-time updates (MIT) | 1
  89. LiftMind – AI Addiction Recovery | 3
  90. I Created Wizible – A Windows Widget for Plausible Analytics | 0
  91. FailWatch – A fail-closed circuit breaker for AI agents | 1
  92. FightHOAFines – An AI agent that reads bylaws to dispute HOA violations | 1
  93. Trainivio – Interactive video training that ensures 100% mastery | 0
  94. Loki Mode hit 99.67% SWE-Bench – MAF built a SaaS overnight | 5
  95. Bind.ly – Persistent memory for AI across tools | 1
  96. DreamStack – Framework-agnostic Node.js foundation - 500+ tests (~10s) | 2
  97. Omni Podcast: AI Podcast Generator | 2
  98. NewsMap – local news on a map (like Zillow but for news) | 1
  99. Zilnic – a simple daily rhythm tracker | 3
  100. 30k IKEA items in flat text (CommerceTXT). 24% smaller than JSON | 1