Text Diff / Compare
Compare two blocks of text and see exactly which lines were added, removed or changed.
Diff Tool
Compare two text blocks · line, word or character level · drop files
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About this tool
Paste an original and a modified version of any text to get a clear, line-by-line diff with additions, deletions and changes highlighted. It works on code, config files, logs, JSON, prose — anything text-based.
The comparison runs entirely in your browser, so confidential files never leave your machine. It is handy for reviewing edits, spotting unexpected config drift between environments and comparing two versions of a document.