Compare two JSON documents locally in your browser. The path report shows exactly which field was added, removed, changed, or changed type, while the unified diff gives you a review-friendly view of the formatted JSON.
Use it for API responses, webhook payloads, configuration files, test fixtures, translation files, package metadata, and any nested JSON where a plain text diff creates too much noise. Sorting object keys is enabled by default so property order does not hide the real changes.
No JSON is sent to the server. You can load local files, format both sides, swap versions, copy a readable report, or download the report for review notes.
Related tools: JSON Parser · JSON Schema Validator