Text CompareCompare two versions of a text and highlight added and removed words.
Diff Checker
Find what changed between two versions of a config file, script or document. Lines are compared in order and differences are marked with + and −, like in Git.
Open original file
Open changed file
Differences
Runs entirely in your browser. Your input and files are not uploaded to any server.
How to use
- Paste the original on the left (top on mobile) and the new version on the right, or open files.
- Choose whether to ignore whitespace and case.
- Press Compare and review the highlighted lines. Copy the unified diff if you need to share it.
Examples
Config change
Compare two .env or nginx.conf files to see which lines differ.
Privacy
Your files and text stay in your browser while you use this tool, and ads or anonymous visit statistics do not receive them. Only your favorites and recent tools are saved on your device. Privacy policy
Want proof? Check it with your browser’s Network tab: How to check that a tool does not upload your files
Frequently asked questions
How large can the inputs be?
Up to about 5,000 lines per side compare instantly. Larger inputs are refused to keep the page responsive.
Is the unified diff compatible with patch?
The output follows the unified diff format with @@ hunk headers, which most tools can read. Always review before applying it as a patch.
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