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Diff Checker - Compare Text Online
Compare two texts side-by-side and see the differences highlighted line-by-line. Perfect for code reviews, document comparison, and tracking changes.
+0 added-0 removed0 unchanged
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Why use this Diff Checker?
Our diff checker is built for developers and writers who need to quickly spot differences between two versions of text. It runs entirely in your browser with no server uploads, includes character-level highlighting for changed lines, and provides a clean, readable output.
⚡ Smart Diff Algorithm
- • Line-by-line comparison
- • Character-level highlighting
- • Longest Common Subsequence (LCS)
- • Handles large files efficiently
🔒 Privacy First
- • Client-side processing only
- • No data sent to servers
- • Works offline after load
- • Copy diff output instantly
Perfect for:
- ✅ Code reviews and pull requests
- ✅ Document version comparison
- ✅ Configuration file changes
- ✅ Markdown or text file tracking
- ✅ Legal document redlining
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