How does the diff algorithm work?

This tool compares texts line by line, identifying lines that were added, removed, or remain unchanged. Lines present only in the modified text are marked as additions, and lines only in the original are marked as removals.

Can I compare code files?

Yes. Simply paste the contents of two code files and click Compare. The tool preserves whitespace and formatting for accurate comparison.

Is there a file size limit?

Since everything runs in your browser, the limit depends on your device's memory. It works well for texts up to tens of thousands of lines.

Diff Checker

Compare two texts and see the differences highlighted line by line. Perfect for comparing code, documents, and configurations.

Original

Modified

What Is a Diff Checker?

A diff checker compares two pieces of text and highlights the differences between them. Added lines are shown in green, removed lines in red, and unchanged lines in white. It is commonly used to compare code revisions, document versions, and configuration files.

Frequently Asked Questions

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