OLD
Original
NEW
Modified
What Is a Diff Checker
A diff checker compares two text files or code snippets side by side and highlights all differences instantly. Perfect for developers reviewing code changes, writers comparing document versions, and anyone who needs to spot differences between two texts.
When to Use a Diff Checker
- Review code changes before committing
- Compare document versions
- Debug differences in output
- Check for text modifications
How to Compare Texts
- Paste original text on the left
- Paste modified text on the right
- See differences highlighted instantly
- Switch between Split and Unified view
Frequently Asked Questions
Is my data sent to a server?
No. All text comparison happens directly in your browser. Your
data is never sent to any server.
What's the difference between split and unified view?
Split view shows both texts side by side with differences
highlighted. Unified view shows a single output with added lines marked + and
removed lines marked -.
What do the colors mean?
Green indicates added lines. Red shows removed lines. Yellow
highlights modified lines where characters changed. The colors help you quickly
identify what changed between versions.