How does it compare JSON?

It recursively compares keys and values, showing which keys were added, removed, or changed. Nested objects are compared deeply.

Does it handle arrays?

Arrays are compared by index. Items at the same index are compared; extra items are marked as added or removed.

No. Comparison runs entirely in your browser.

Compare two JSON objects and highlight the differences. See added, removed and changed keys. Free online tool.

Original JSON

Modified JSON

Paste two JSON objects and see exactly what changed. Added keys in green, removed in red, modified values highlighted.

Deep comparison

Recursively compares nested objects and arrays.

Color-coded

Added, removed, and changed values are highlighted.

Private

Runs in your browser.