Text Compare (Diff)
Compare two texts online and see the differences highlighted line by line — added lines in green, removed in red. Free, instant, in your browser.
About the Text Compare (Diff)
A text compare tool (a diff checker) shows what changed between two versions of text. Paste the original on one side and the changed version on the other, and this free online diff highlights every difference line by line: added lines in green, removed lines in red, and unchanged lines in grey, with a count of additions and deletions.
It is useful for comparing drafts of a document, spotting edits in contracts or emails, reviewing code snippets, checking configuration changes, or finding what someone altered. Everything runs in your browser — your text is never uploaded — and the comparison updates instantly as you type or paste.
How to use this tool
- 1Paste the original text into the left box.
- 2Paste the changed text into the right box.
- 3The differences appear below, line by line.
- 4Green lines were added; red lines were removed.