DEVELOPER TOOLS

Text Diff Checker

Compare two versions of text line by line. See what was added, removed or left unchanged, with no upload required.

Free to use No sign-up Runs in your browser
Up to 500 lines per text

Compared locally in your browser. Your text is not uploaded.

How to compare two texts

Paste the earlier version into Original text and the newer version into Changed text, then select Compare text. Added lines are highlighted in green, removed lines in red, and unchanged lines remain neutral. The comparison is line-based and accepts up to 500 lines in each input.

What does a text diff show?

A diff summarizes the differences between two versions of text. This checker uses a longest-common-subsequence comparison to identify unchanged lines while displaying additions and removals.

Count words in a document with the Word Counter, or transform capitalization with the Text Case Converter.