JSON Diff Checker

Structural comparison

Unlike a plain text diff, this compares the data itself. Spaces, line breaks and the order of keys in objects don't matter, so a minified and a pretty-printed version of the same JSON count as identical. Each difference is shown with its path, for example $.limits.daily or $.features[2]:

• Added — present only in the changed JSON.
• Removed — present only in the original.
• Changed — the value or its type differs (old → new).

Arrays

By default arrays are compared position by position, because order often matters. Tick "Ignore the order of array items" for lists like tags or permissions, where [a, b] and [b, a] mean the same thing.

Typical uses: checking API responses before and after a change, comparing configuration files between servers, and reviewing translation files. For plain text or code, use the Text Diff Checker. Both files stay in your browser.