Text Diff Checker — Compare Two Texts Online
Free text diff checker. Compare two texts or files line by line and see additions and deletions highlighted instantly. Runs privately in your browser.
Runs in your browser — your data is never uploaded.
Paste an original and a changed version and this diff checker highlights what was added and removed, line by line. It is useful for comparing document drafts, configuration files, code snippets, contracts and copy edits. Comparison runs locally, so sensitive text is never uploaded.
How to use the Text Diff Checker
- Paste the original text on the left.
- Paste the changed text on the right.
- Review the highlighted additions and removals.
Text Diff Checker — frequently asked questions
What do the colours mean?
Green lines were added in the new text; red lines were removed from the original.
Does it compare words or lines?
It compares line by line, which suits documents and code.
Is my text uploaded?
No. The comparison happens in your browser.
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