Compare JSON Payloads
Compare two JSON objects and spot changes locally in your browser.
Browser JSON diff comparison
Compare two JSON payloads locally to see what has changed, been added, or removed. It is useful for API diffs, config drift, and migration checks.
Benefits: Instant diff highlighting, nested structure support, clear change markers, and data that stays on your device.
Best for: API response diffs, configuration files, migration checks, and debugging data shape changes.
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Next step
Need a different route? Check the next tool in this cluster instead of starting over.
Browse Developer toolsQuestions before you use it
Does order matter when comparing JSON?
Object key order does not matter in JSON. `{a:1, b:2}` and `{b:2, a:1}` are considered equal. Array order still matters.
Can I compare deeply nested JSON?
Yes. The comparison is recursive and handles arbitrarily deep nesting.
Is my JSON data private?
Completely. All comparison happens in your browser. No data is ever transmitted anywhere.