Regex Tester

Our Regex Tester is a powerful tool for testing, validating, and debugging regular expressions. Whether you're a developer working with pattern matching, data validation, or text processing, this tool provides real-time testing with visual feedback and detailed analysis.

Test your regex patterns against sample text, see highlighted matches, analyze capture groups, and get detailed explanations of your patterns. Perfect for learning regex, debugging complex patterns, and ensuring your regular expressions work correctly.

Key Features:

• Real-time Testing: See matches instantly as you type patterns or test strings
• Visual Highlighting: Clear visual feedback showing matched text segments
• Capture Groups: Detailed analysis of capture groups and subpatterns
• Pattern Explanation: Human-readable explanations of regex patterns
• Flag Support: Test with global, case-insensitive, multiline, and other flags
• Error Detection: Clear error messages for invalid regex patterns
• Example Library: Common regex patterns for email, phone, date validation

Common Use Cases:

• Form validation for email addresses, phone numbers, and dates
• Data extraction and parsing from text files
• Search and replace operations in code editors
• Log file analysis and pattern matching
• URL routing and parameter extraction
• Input sanitization and security validation
• Text processing and content manipulation