Compare two texts side by side and see exactly what changed. Character, word, or line-level diffing with color-coded highlighting.
All processing happens in your browser. Your data never leaves your device.
Paste two versions of your text β the original and the modified version. The tool instantly compares them and highlights every difference. Choose character-level diffing for precise changes, word-level for readable comparisons, or line-level for structural differences. Switch between inline view (changes shown in one stream) and side-by-side view (original left, modified right). All processing happens in your browser β your text never leaves your device.
Compare document revisions, check code changes, verify text edits, or find differences between any two versions of text. Useful for proofreading, code review, and content management.
The tool uses a proven diff algorithm (similar to Unix diff) to find the minimal set of changes between two texts. It identifies added, removed, and unchanged segments at the character, word, or line level.
Yes. All comparison happens entirely in your browser using JavaScript. Neither text is sent to any server or stored anywhere.
Yes. The tool handles documents of any reasonable size. Very large texts (100,000+ characters) may take a moment to process since everything runs client-side.
Character-level shows every single character change. Word-level groups changes by word boundaries, making it easier to read prose changes. Line-level shows which lines were added, removed, or modified β best for code and structured text.
Ignore whitespace treats texts as identical if they only differ in spacing. Ignore case treats uppercase and lowercase letters as the same, so 'Hello' and 'hello' won't show as different.
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