How it works
Paste the original text on the left and the changed text on the right, then click Compare. The tool lines the two versions up and finds the smallest set of edits between them, showing removed lines with a minus, added lines with a plus, and unchanged lines as-is. Use "ignore case" and "ignore whitespace" to focus on meaningful changes rather than formatting. A short summary tells you how many lines were added and removed. Everything runs locally in your browser; nothing is uploaded.
Text Diff / Compare
See exactly what changed between two blocks of text.
FAQ
How does the text compare tool work?
It compares your two texts line by line and finds the smallest set of changes that turns the first into the second. Lines only in the original are marked removed, lines only in the changed version are marked added, and matching lines are shown unchanged.
Can it ignore case or spacing?
Yes. Turn on "ignore case" to treat different capitalizations as equal, and "ignore whitespace" to ignore differences in leading, trailing, or repeated spaces when matching lines.
Does it show how many lines changed?
Yes. A summary shows how many lines were added and how many were removed between the two versions.
Is my text uploaded anywhere?
No. The comparison runs entirely in your browser. Nothing you paste is transmitted or stored.