Text Diff Checker

Compare and find differences between two texts with advanced diff visualization, statistics, and export options

All processing happens in your browser. Your data never leaves your device and is automatically saved.

Text A

Text B

Example Use Cases

Code Reviews

Compare code changes, identify modifications, and review pull requests

Document Comparison

Track changes between document versions, contracts, or articles

Debugging

Compare logs, configurations, or output files to find discrepancies

Version Control

Analyze changes between Git commits or branches

About Text Diff Checker

Text Diff Checker is a powerful tool that compares two pieces of text and visualizes the differences with advanced algorithms including line-by-line comparison and character-level diff detection.

Powerful features:

LCS Algorithm: Uses Longest Common Subsequence for accurate diff detection
Smart Modification Detection: Identifies modified lines with character-level changes
Detailed Statistics: Shows additions, deletions, modifications, and unchanged lines
Multiple View Modes: Inline or split-panel view with option to show only changes
Export Options: Download diff as TXT, HTML, or JSON format
Copy to Clipboard: Quick copy with standard diff notation (+/-/~)
Auto-save: Form data automatically saved to browser storage
Dark Mode: Full dark mode support with customized color themes

Use cases: Code reviews, document comparison, content editing, debugging, version control analysis, configuration management, text forensics