JSON Diff - Compare JSON Online

Compare two JSON files and find differences instantly. Free, fast, no upload to server.

Upload Your JSON File

Drag and drop your JSON file or click to browse. Your file is processed locally in your browser.

About JSON Diff Tool

Compare two JSON files side by side and instantly find all differences. Our tool highlights added, removed, and changed values with color-coded results.

Features

  • Deep comparison of nested objects and arrays
  • Color-coded diff: green (added), red (removed), yellow (changed)
  • Path-based navigation to each difference
  • 100% client-side processing - your data never leaves your browser

How to Use

  1. Paste your original JSON in the left text area
  2. Paste your modified JSON in the right text area
  3. Click "Compare JSON" to see all differences