Text Diff Checker

Frequently asked questions

What kind of diff does this tool show?

A line-by-line comparison — each line is matched against the other text, and additions, removals and unchanged lines are highlighted so you can see exactly what changed.

Can it compare code, not just plain text?

Yes — since it compares line by line regardless of content, it works for source code, config files, JSON, or any other line-based text, not just prose.

Does it ignore whitespace or case differences?

By default it compares text exactly as pasted, including whitespace and case, so trivial formatting differences will show up as changes unless the tool exposes a specific option to ignore them.

Are the two texts I paste uploaded or stored anywhere?

No. The comparison runs entirely in your browser — nothing you paste is sent to a server or kept, and no account is needed.

Do I need to install anything or sign up?

No. It runs entirely in your browser — no software install, no account, no email required.