TPToolPocket

JSON Formatter & Validator

Format, minify, and validate JSON instantly. Runs entirely in your browser.

ProJSON diff, tree view, and saved formatting history

Upgrade to Pro for $5/month

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About This JSON Formatter

This free JSON formatter lets you format, validate, and minify JSON data instantly in your browser. Unlike other tools, your data never leaves your device — everything runs client-side using JavaScript.

Features

  • Format JSON with proper indentation and pretty-printing
  • Minify JSON by removing all whitespace
  • Validate JSONwith clear error messages showing exactly what's wrong
  • 100% private — no data is sent to any server