📝 Text & List
Text Diff Checker
Compare two texts side-by-side and see exactly what changed. Green highlights for additions, red for deletions. Word or line mode.
The Text Diff is a free online tool that helps you compare two texts side-by-side and see exactly what changed. green highlights for additions, red for deletions. word or line mode It runs in your browser with no sign-up, downloads, or installation needed. All processing happens locally — your data stays on your device.
Text Diff
How to use the Text Diff
1
Line-by-line diff
The tool compares the two texts line by line. Identical lines show in grey, removed lines (only in A) in red, added lines (only in B) in green. The algorithm finds the longest common subsequence between the two — the same approach Unix diff uses.
2
Common uses
Comparing two versions of a document, finding what changed in copied-and-pasted email threads, spotting differences in configuration files, reviewing edits to legal text. For source code, your editor probably has a better diff view than this — but this works anywhere, with no software needed.