Compare two texts and find differences with side-by-side and unified views. Highlight changes at word or character level with clean, intuitive interface.
diff
compare
text comparison
difference
merge
side by side
About Diff Checker Tool
This powerful online diff checker compares two texts and highlights differences with precision. Perfect for developers, writers, and anyone who needs to identify changes between text versions with side-by-side and unified view modes.
Key Features
Side-by-side and unified diff view modes for flexible comparison
Word-level, character-level, and line-level comparison granularity
Smart highlighting with color-coded additions, deletions, and modifications
Ignore whitespace and case options for flexible comparison
Real-time auto-comparison as you type for instant feedback
File upload support for multiple text formats
Copy individual sections or complete diff results
Detailed statistics showing additions, deletions, and modifications
Text swapping functionality for easy comparison reversal
Example templates for quick testing and demonstration
Use Cases
Code review and version comparison for software development
Document revision tracking and change identification
Choose between side-by-side view for visual comparison or unified view for traditional diff format. Adjust comparison granularity from line-level for broad changes to character-level for precise differences.
Privacy & Security
All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.
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