Show - HN Paper

Show HN: Tearoff – tear-off flyers for the internet

Show HN: TinyFn – Your agent sucks at math

Show HN: Vibe Coding Bundler – Bundle AI generated apps in a browser

Show HN: Diffnote – Browser-based document diff tool with no server uploads

Show HN: Quickly capture notes in Markdown documents without opening the file

Show HN: MedTimer, an open source medication reminder for Android

Show HN: Slay the Spire 2 Database – Cards, Characters, and Deck Builder

Show HN: Maestro-runner – Maestro alternative in Go (no JVM, 2-3x faster)

Show HN: GitGuessr – test your code reading skills in a GeoGuessr-like game

Show HN: Instantly surface the assumptions behind a UI screenshot

Show HN: Static psql – Pre-built PostgreSQL client binaries

Show HN: Prompt University – The Worlds First University for AI

Show HN: Samrian – Making the truth cheaper than the lie in ISO 9001

Show HN: Crnd – Cron daemon built for scripts and AI agents

Show HN: A 3D chessboard sandbox with optional WebGPU path tracing

Show HN: Unit Prefix Sanity Checker – Catches 10×/1000× errors in datasheets

Show HN: howfar.nyc

Show HN: GrahamBell – This is what Bitcoin mining looked like in 2009

Show HN: YourGPT Copilot SDK Open-source SDK for product-level intelligence

Show HN: Nexus Gateway – A self-healing AI gateway in Go with 5ms caching