Pattern
Test String
Guide
Basic Usage
Learn how to use regular expressions effectively with our tester.
Common Patterns
- Simple Text - Match exact text or words
- Email - Validate email addresses
- Phone Numbers - Match various phone number formats
- Dates - Match date formats (YYYY-MM-DD, MM/DD/YYYY)
- URLs - Match web addresses and domains
- Passwords - Validate password requirements
Regex Flags
- g (Global) - Find all matches rather than stopping at first match
- m (Multiline) - ^ and $ match start/end of each line
- i (Case Insensitive) - Match regardless of case
- u (Unicode) - Enable full Unicode matching
- y (Sticky) - Match only from lastIndex
- s (Dot All) - Dot matches newlines too