JSONToolkit

JSON Diff & Compare

Compare two JSON files side by side with added, removed and changed highlighting plus a structured diff summary. Works with large objects.

Compare two JSON files

The JSON diff tool shows exactly what changed between two documents — added, removed and modified values — with a clear, structured summary. Perfect for comparing API responses, config files and snapshots.

Frequently asked questions

How does the JSON diff work?+

Paste two JSON documents and compare them. The tool highlights added, removed and changed values with a structured, path-by-path summary.

Can it compare large JSON objects?+

Yes. The diff is computed efficiently in your browser and handles deeply nested objects and arrays.

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