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JSON Toolset

Format, validate, minify, and compare JSON data. 100% client-side.

JSON Formatter & Diff Features

This tool provides a comprehensive suite for working with JSON data. You can prettify chaotic strings, minify them for production, or use the JSON Diff mode to compare two JSON objects and see if they are identical.

  • Prettify: Convert minified JSON into a readable format.
  • Minify: Remove all whitespace from JSON for minimal footprint.
  • Diff Mode: Compare two JSON blobs side-by-side. It parses the JSON first, so property order differences won't affect the result if they are semantically the same.
  • Character-Level Highlighting: Instantly see exactly which values or keys have changed within a line (e.g. true vs false).
  • 100% Local: Your data never leaves your browser, ensuring maximum privacy and security.