Free Text Diff
Compare two pasted text versions line by line with clear added and removed markers. Paste and transform text locally in your browser with no signup.
Your input never leaves your device.
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Everything runs 100% locally in your browser. No files are uploaded to any server.
How to Use Text Diff
Paste the original
Enter the first text version in the top editor.
Paste the revision
Enter the second version in the comparison editor.
Read the markers
Lines prefixed with - appear only in the first version; + lines appear only in the second.
Key Features & Benefits
Fast line comparison
Spot additions and removals without sending drafts to a server.
Readable output
Shared lines remain visible while changed lines receive simple markers.
Frequently Asked Questions
Does it compare individual characters?
No. This tool compares complete lines, not character-level edits or rich formatting.
Does line order affect the result?
The output identifies whether each line appears in each version; it is a lightweight comparison rather than a full patch algorithm.
Key terms
- Text diff
- A comparison that shows how two text versions differ.