Minimum adjacent words (or characters) for each move when comparing at that level

 Lines of context when showing identical paragraphs near differences

White space is always ignored

Using this site is free, but a voluntary donation from you will help keep it going, able to cope with large diffs and increasing traffic.

We have many features not found in other online compare text tools, such as detecting re-ordered lines, omitting unchanged lines, navigation from one difference to the next and keeping your text secure from eavesdropping via https/SSL. No temporary files are created during the comparison process. Everything is done in memory.

P.S. We also produce software to directly compare two Microsoft Excel spreadsheets.

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