Diff Checker
Compare two text inputs and see differences highlighted.
About this tool
Comparing two versions of text—old vs new, original vs edited—is easier when differences are highlighted. Our diff checker shows you exactly what changed. Paste the original in one box and the modified text in the other; the tool highlights added, removed, and changed lines. Useful for code, contracts, or any text you need to compare. Everything runs in your browser; your text is not sent to our servers. No sign-up. A clear, side-by-side way to see differences.
How to use
Paste the original text in the first box and the modified text in the second. Differences are highlighted for easy comparison.
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Pro tips
- •Use keyboard shortcuts where available to speed up your workflow.
- •Large inputs are processed in your browser—nothing is sent to our servers.
- •Bookmark this tool for quick access from your browser bar.