Text Difference Checker

Compare two passages line by line. Added, removed, and changed lines are clearly labeled, making it easier to spot edits in copy, code snippets, lists, or configuration text.

How the comparison works

The checker aligns lines in order and uses a longest-common-subsequence comparison. Unchanged lines remain neutral, deleted lines are labeled Removed, and inserted lines are labeled Added. A replaced line therefore appears as one removal followed by one addition.