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JSON Diff Viewer

Paste two JSON objects to validate them and compare changed keys locally in your browser.

✓ Tool inputs are processed in your browser✓ No account
Compare two JSON objects locally.

When to use this tool

Use it when you need a quick, private JSON comparison before debugging, documenting or merging data.

  1. Compare API responses from two environments.
  2. Check changed configuration keys before sharing a snippet.
  3. Review small JSON payload updates without uploading them.
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Encode or decode Base64.

FAQ

Questions

Questions

Does the JSON diff viewer upload my JSON?

No. Both JSON inputs are parsed and compared in your browser.

What differences are shown?

The result lists added keys, removed keys and changed values using dot-style paths.

Can it compare arrays?

Yes. Array positions are compared by index, which is best for small structured payloads.