Free JSON Diff
Compare two JSON payloads side-by-side. See line numbers and highlighted differences.
JSON A
JSON B
JSON A
JSON B
How to use
- Paste valid JSON into A and B.
- Optionally enable order-insensitive arrays.
- Select an output view and click Diff.
Why use
Quickly inspect what changed between two JSON payloads, including added/removed paths and type changes.
Frequently asked questions
What does JSON Diff show?
It compares structure and values: added keys/items, removed keys/items, and changed values (including when types change).
How are arrays handled?
By default arrays are compared by index (strict). You can also enable best-effort order-insensitive matching for arrays of objects.
Is my JSON stored?
No. Your inputs are parsed to compute the diff and are not saved.