StructFix
Compare & inspect

JSON Diff

Compare two JSON values semantically and see added, removed, and changed properties by path.

✓ Free✓ No sign-up✓ Local session
Stays in this tabCtrl/⌘ + Enter
Original JSONJSON5 lines
69 bytes1,999,931 characters remaining
Updated JSONJSON5 lines
79 bytes1,999,921 characters remaining
Up to 2 MB · processed locally
How it works

Use JSON Diff in three steps

  1. 01

    Paste the original and updated JSON.

  2. 02

    Choose Compare JSON.

  3. 03

    Review the summary and each nested path.

Quick example

From input to useful output

Compare two JSON values semantically and see added, removed, and changed properties by path.

{
  "name": "StructFix",
  "version": 1,
  "features": ["validate"]
}
Common questions

JSON Diff FAQ

Is this only a line-by-line diff?+

No. Values are parsed first, so formatting and key order do not create false changes.

Can arrays be compared?+

Yes. Array items are compared by their numeric index.

Keep working

Related tools

View all tools
Path FinderSearch JSON keys or values and copy the exact JSONPath for every match, including nested arrays.ValidatorCheck JSON syntax instantly and pinpoint invalid characters with readable line and column details.