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About This Tool
Quickly spot the differences between two versions of any text with this side-by-side diff viewer. Paste the original and modified text into the two panels, and the tool instantly highlights additions in green and deletions in red while unchanged lines remain unformatted.
The comparison is powered by the Myers diff algorithm — the same algorithm used by Git — ensuring optimal minimal-edit diffs rather than simple line-by-line comparison. Line numbers are shown for both sides, and a summary statistics bar shows total added, deleted, and unchanged line counts.
Useful for comparing code versions, configuration files, document drafts, database exports, or any two blocks of text where you need to understand exactly what changed.