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String Diff Tool
Compare two texts and visualize differences at character, word, or line level. Additions are shown in green, deletions in red, and unchanged text in gray. 100% client-side.
📝 INPUT
Drop original file here or click to upload
Drop modified file here or click to upload
⚙️ OPTIONS
Comparison Options
Options
📋 DIFF RESULT
Added
Removed
Unchanged
Click "Compare Texts" to see the differences...
Diff Statistics
Added: 0 | Removed: 0 | Unchanged: 0 | Similarity: —
How to Use the String Diff Tool
1. Enter Texts
Paste your original and modified texts into the two input boxes.
2. Choose Mode
Select character, word, or line-level comparison and toggle options.
3. Compare & Review
Click Compare to see color-coded differences with statistics.
Common Use Cases
📝 Proofreading revisions
💻 Code change review
📄 Contract version comparison
🌐 Translation verification
📋 Config file comparison
🔍 Plagiarism checking