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JSON Diff & Compare Tool

Compare parsed JSON values locally and export an RFC 6902 patch.
Local browser processing
Your input is processed only in this browser and is not uploaded, stored, or proxied.
Left JSON
Right JSON
Result

What this tool does

This JSON diff tool parses both inputs and compares their actual values, so whitespace and object-key order do not create false changes. It shows an RFC 6902 patch with added, removed, and replaced paths.

How to use it

  1. Paste or enter the content you want to process.
  2. Choose a mode and run the tool.
  3. Review the result and limitations, then copy what you need.

Limitations

Array order is significant in this release. The tool compares JSON values, not source formatting, and it does not validate a JSON Schema.

Related tools

JSON FormatterText CompareJSON Schema Validator

Frequently asked questions

Does object key order matter?
No. JSON object members are compared by key and value, regardless of their source order.
Does array order matter?
Yes. Arrays use index-based RFC 6902 semantics in this release.
Is my JSON uploaded?
No. Parsing and comparison run in this browser.
How is this different from text diff?
Text diff compares lines and whitespace; this tool compares parsed JSON values.