Text Diff Checker
Compare two texts and see the differences with detailed analysis and statistics
Ready to compare texts
Enter or paste text in both fields above and click "Compare Texts" to see the differences.
How to Use Text Diff Checker
Add Original Text
Paste or type your original text in the left input area.
Add Modified Text
Paste or type the modified version in the right input area.
Compare & Analyze
Click "Compare Texts" to see differences highlighted with detailed statistics.
Advanced Text Comparison Features
Professional-grade text analysis with visual highlighting and detailed metrics
Visual Diff
- • Side-by-side text comparison
- • Color-coded difference highlighting
- • Character-level precision
- • Easy-to-read diff format
Addition Tracking
- • Highlight added content
- • Count new characters
- • Track content growth
- • Identify expansions
Deletion Detection
- • Mark removed content
- • Count deleted characters
- • Track content reduction
- • Identify removals
Similarity Analysis
- • Percentage similarity score
- • Unchanged content tracking
- • Statistical breakdown
- • Detailed comparison report
Common Use Cases
Document Revision
Compare different versions of documents, contracts, or manuscripts to track changes and revisions.
Code Review
Compare code files to identify changes, additions, and deletions during development.
Content Editing
Track editorial changes in articles, blog posts, or marketing content before publication.
Translation Review
Compare original text with translations to ensure accuracy and completeness.
Quality Assurance
Verify content changes meet requirements and maintain consistency across versions.
Plagiarism Detection
Compare texts to identify similarities and potential plagiarism or duplication.
Frequently Asked Questions
How accurate is the text comparison?
Our diff checker uses the Myers' algorithm for precise character-level comparison, providing accurate difference detection and similarity scoring.
What does the similarity percentage mean?
The similarity percentage shows how much of the text remains unchanged between the two versions. 100% means identical texts, while lower percentages indicate more differences.
Can I compare large text files?
Yes, the tool can handle large texts. For very large files, the processing may take a moment, and we recommend using desktop browsers for optimal performance.
What format is the diff report in?
The diff report is generated in plain text format with clear markers: "+" for additions, "-" for deletions, and spaces for unchanged content.
Comparison Features
Today's Stats
Comparison Tips
Large Files: For better performance with large texts, consider breaking them into smaller sections.
Formatting: The tool compares raw text content, so formatting differences won't affect the comparison.
Reports: Use the download feature to save detailed diff reports for documentation and review.