Text Diff Checker Online

Free online text diff checker. Compare two texts line-by-line and see what changed (+ added, - removed).

How to use

Paste the original text on the left.
Paste the updated text on the right.
Review the diff output and copy it if needed.

FAQ

Is the comparison done locally?

Yes, diff is generated in your browser.

What kind of diff is this?

Line-based diff that marks added and removed lines.

Can I compare big texts?

Yes, but very large inputs may be slower in the browser.