How to use it
- Paste old or expected JSON on the left.
- Paste new or actual JSON on the right.
- When both inputs are valid, inspect the differences automatically.
Developer tool
JSON Compare - Online JSON Diff Tool
See field-level differences between two JSON outputs.
JSON AOld or expected data
JSON BNew or actual data
DifferencesNot compared yet.
Practical guide
Inspect JSON differences field by field
Compare expected and actual JSON side by side and inspect added, removed and changed paths clearly.
What is JSON Compare?
This tool streamlines workflows such as api contract changes and expected versus actual test data in one place.
Common uses
- API contract changes
- Expected versus actual test data
- Configuration version comparison
Practical examples
Quickly find removed fields or type changes in a new response.
Compare JSON configuration across environments by field path.
Frequently asked questions
Does object key order count as a difference?
No. Object key order is ignored in field-based comparison.
Does array order matter?
Yes. Array positions can carry meaning, so order may produce differences.
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