Text Diff Checker
Compare two text blocks and show what changed.
Overview
Compares two pieces of text and highlights what changed between them: what was added, removed, or edited. Useful for comparing versions of a document, config, or code snippet. It runs in your browser, so your text is never uploaded.
How it works
The tool lines up your two inputs and marks the differences, much like the diff view in code review. Lines or sections that were added, removed, or changed are highlighted so you can see at a glance what is different between the two versions. The comparison happens locally on your device.
How to use it
- Paste the original text on one side.
- Paste the new or edited text on the other.
- Review the highlighted differences.
- Use the result to confirm or trace the changes.
Examples
Comparing versions
Paste two drafts of a paragraph to see exactly which sentences changed.
Spotting an edit
Change one word in a line and that line is flagged as changed, so you can see which line differs.
FAQ
What does it highlight?
Can I compare code?
Does the order of the two inputs matter?
Is my data sent anywhere?
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Open toolEmbed this tool
Paste this snippet to put the tool on your own site. It runs entirely in the visitor's browser, the same as it does here.