Regex Tester & Highlighter
Test and debug regular expressions with real-time highlighting. Features regex validation, match highlighting, capture groups, history tracking, and export capabilities. Includes pre-built templates for common patterns like email validation, phone numbers, URLs, dates, IP addresses, credit cards, and more. Perfect for developers working with text processing, data validation, and pattern matching in their applications.
Tips
- • Start with simple patterns and build complexity
- • Test with various input types
- • Use anchors (^, $) for precise matching
- • Escape special characters with backslash
- • Use capture groups for extracting data
- • Avoid catastrophic backtracking
- • Use Unicode flag for international text
- • Use multiline mode for line-by-line matching