JSON Formatter & Cleaner

Paste JSON, fix Word smart quotes & hidden characters, validate, minify structurally, and pretty-format.

JSON Formatter is a lightweight popup tool that helps you clean and format JSON instantly. ✅ What it does • Sanitizes pasted JSON by removing hidden/invisible characters (like zero‑width spaces) and normalizing odd Unicode whitespace outside string values • Validates JSON and shows a clear inline error when the input is invalid • Minifies JSON structurally (safe minification using JSON serialization) • Pretty‑formats JSON with readable indentation • One textbox workflow: paste → click Format/Minify → copy 🔒 Privacy This extension works entirely locally in your browser popup. It does not collect, store, or transmit your JSON. 💡 Tips • Use “Format” to clean hidden whitespace issues and get a readable JSON output • Use “Minify” when you need compact JSON for logs, payloads, or APIs • Use Ctrl/Cmd + Enter to format quickly Buttons included: Format, Minify, Copy, Clear.