Show HN: Pastehub.app – client-side "what did I just copy?" tool

I kept copying stuff and opening 10 different tabs to understand it, so I built pastehub.app.100 % client-side, zero backend, nothing ever leaves your machine.

Current detectors (all instant):

JSON → pretty + minify JWT → decode header/payload Base64 / Base64url → decode to text or file Images → QR/barcode decode + dominant color palette + OCR (Tesseract) URLs → clean tracking params + rich preview Hex, colors, unit conversions (kglb, cmft, °C°F, etc.) Math expressions → instant calculation and ~20 more small ones

It’s deliberately over-engineered for the weird stuff I paste daily.

Try throwing anything at it: https://pastehub.app Feedback button () goes straight to me. Curious what breaks it :)