Diff Checker
🔒 Your files never leave your browser — 100% local processing
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Diff Checker
This tool is coming soon — check back shortly! We're building it right now.
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How to Use Diff Checker
- Paste the original text in the left panel
- Paste the updated text in the right panel
- Click 'Compare' to see the differences
- Lines with changes are highlighted by color
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Features
- Line-by-line diff with color-coded changes
- Character-level diff within changed lines
- Unified and side-by-side view modes
- Ignore whitespace option
- Copy diff as patch format
What is Diff Checker?
Compare two texts, code snippets, or documents side by side. Additions are highlighted in green, deletions in red, and unchanged lines in white — just like a git diff, but in your browser.
Frequently Asked Questions
When enabled, differences in spaces, tabs, and line endings are ignored. Useful for comparing code with different indentation styles.
The tool handles texts up to ~1MB comfortably. Larger texts may be slow on older devices.
Yes — drag and drop text files (.txt, .js, .py, .md, etc.) into each panel.