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Text Comparison Tool
Why Choose TextDiff.net?
Lightning Fast
Real-time text comparison with instant difference highlighting
Secure & Private
All processing happens in your browser. No data sent to servers
Advanced Diff
Character-level highlighting with professional diff algorithms
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About Text Comparison and Diff Tools
Text comparison, also known as "diff" (difference), is a fundamental tool for developers, writers, and anyone working with text documents. Our online text diff tool at TextDiff.net provides a comprehensive solution for comparing two texts side-by-side with highlighted differences.
Whether you're reviewing code changes, comparing document versions, or analyzing text modifications, our professional diff viewer offers advanced features including character-level highlighting, line-by-line comparison, and customizable comparison options.
Side-by-side Comparison
Compare two texts side-by-side with clear visual separation. Our interface makes it easy to spot differences between original and modified versions.
- • Visual side-by-side layout
- • Synchronized scrolling
- • Line number references
Difference Highlighting
Advanced highlighting system that shows added, removed, and modified content with distinct colors and character-level precision.
- • Color-coded differences
- • Character-level highlighting
- • Clear visual indicators
File Upload Support
Upload text files directly from your computer for comparison. Supports various file formats including TXT, MD, JS, CSS, HTML, and more.
- • Multiple file formats
- • Drag and drop support
- • Large file handling
Customizable Options
Configure comparison settings to match your needs. Ignore whitespace, case sensitivity, or enable character-level diff for detailed analysis.
- • Ignore whitespace option
- • Case-insensitive comparison
- • Character-level diff toggle
Detailed Statistics
Get comprehensive statistics about your text comparison including added, removed, modified, and unchanged lines with precise counts.
- • Line change statistics
- • Character count analysis
- • Modification summary
Export & Share
Export your diff results or copy them to clipboard for sharing. Perfect for code reviews, documentation, and collaboration workflows.
- • Export diff results
- • Copy to clipboard
- • Share-friendly format
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Frequently Asked Questions
What is a text diff tool?
A text diff tool compares two pieces of text and highlights the differences between them. It shows what has been added, removed, or modified, making it easy to track changes in documents, code, or any text content.
Is my data secure when using TextDiff.net?
Yes, absolutely! All text comparison and processing happens entirely in your browser. No data is sent to our servers, ensuring complete privacy and security of your sensitive information.
What file formats are supported?
TextDiff.net supports various text file formats including TXT, MD, JS, CSS, HTML, JSON, XML, CSV, and more. You can upload files directly or paste text content into the comparison areas.
Can I compare large files?
Yes, our tool can handle large text files efficiently. The comparison is performed in your browser using optimized algorithms that can process substantial amounts of text while maintaining good performance.
What's the difference between line-level and character-level diff?
Line-level diff shows which entire lines have changed, while character-level diff highlights specific characters within lines that have been modified. Character-level diff provides more granular detail about changes.