Question 1

How does JSON Compare work?

Accepted Answer

Paste or load two JSON documents and the tool walks both structures key by key, reporting every added, removed, and changed value with its full path. Object key order is ignored, so two documents with the same data in a different order show as identical.

Question 2

Is my JSON uploaded anywhere?

Accepted Answer

No. The comparison runs entirely in your browser with JavaScript. Your data never leaves your device, which matters when you are diffing API responses, config files, or exports that contain keys, tokens, or customer records.

Question 3

Does key order or formatting affect the result?

Accepted Answer

Object key order and whitespace are ignored — the diff is structural, not textual. Array order does matter, because [1,2] and [2,1] are different JSON values. Use a text diff tool if you need byte-level comparison instead.

JSON Compare

Related Tools