Diff Checker
Compare two texts or code files side by side.
About the Diff Checker
Spot changes between document versions, config files, or code snippets. Paste two texts and see exactly what changed.
How to use the Diff Checker
- Paste the original text on the left.
- Paste the modified text on the right.
- View side-by-side or unified diff.
Frequently Asked Questions
- Is there a character limit?
- Very large texts may slow your browser. Under 100KB per side works best.
Related guides
About this tool
All processing happens entirely in your browser. No data is uploaded to any server.
Developer Tools