How does the diff work?

Both documents are pretty-printed and compared line-by-line with an LCS diff — removals in red, additions in green.

Does it work on large JSON?

Yes — any size your browser can parse, though very large documents are slower.

Сравните два JSON-документа рядом и увидьте точные изменения. Бесплатно, в браузере.

Original JSON

Modified JSON