What kinds of text can I compare?

Anything — source code, configuration files, JSON, logs or plain prose. The diff works on any text you paste.

Can it ignore whitespace and case?

Yes. Toggle the options to ignore leading/trailing whitespace or letter case so only meaningful changes are highlighted.

No. The comparison is computed entirely in your browser using JavaScript — nothing is uploaded or stored.

Compare two blocks of text and highlight the differences line by line.

Original

Changed

Line Word Character

Ignore whitespace

Ignore case