Compare two JSON documents in your browser. See added, removed, and changed paths, then copy a JSON Patch style summary.
Objects are compared by key. Arrays are compared by position, so changed order can create differences.
No patch operations are needed.
Recent comparisons stay in this browser only.
Object members are matched by key, so formatting and key order do not count as changes.
Arrays are matched by index. If an item moves, the tool reports the positions that changed.
A number, string, boolean, null, object, and array are treated as different JSON types.
JSON needs double-quoted property names and string values. Single quotes and trailing commas will not parse as JSON.
JSON objects are unordered. Reordering keys is usually formatting, not a data change.
Array order is meaningful. Sort arrays first if the order should not matter for your use case.
For large API responses, compare the smallest object that shows the problem before pasting the full payload.
Use the patch output when you need a compact list of add, remove, and replace operations.
The comparison runs in your browser, but you should still remove secrets before saving a local history entry.