Compare Two Texts
Highlight the differences between two texts, by lines, words or characters.
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About this tool
Compare two versions of a text, a contract, a list or a code file: additions appear in green, deletions in red, with a summary of the changes. Choose the granularity (lines, words or characters), ignore case or whitespace, then copy the diff in unified format.
How to use this tool
- 1Paste the original text on the left and the modified text on the right.
- 2Choose the granularity (lines, words, characters).
- 3Read the highlighted differences or copy the diff.
Limits to know
- The algorithm (Myers, via the open source "diff" library) finds the smallest set of changes; on very different texts, the result may look less readable than a manual comparison.
- Texts up to about 2 MB to stay smooth.
- Accepted formats
- Text
- Maximum size
- 2 MB
Privacy and file processing
The text is processed instantly in your browser: nothing is sent to a server, nothing is kept.
Read our privacy policyFrequently asked questions
"Words" to proofread a new version of a text, "Lines" for code or lists, "Characters" to spot a typo or a changed digit. Line mode is the most readable on long documents.
Yes, each area accepts a text file (.txt, .md, .csv…). For two PDFs, use "Compare two PDFs", which extracts the text page by page.