Regex Pattern Generator
Browse common regex patterns for email, URL, phone, IP address, date, and more. Each pattern includes a breakdown explanation and live testing. 100% client-side.
Pattern Breakdown
Examples (click to test)
About Regular Expressions
Regular expressions (regex) are patterns used to match character combinations in strings. They are essential for form validation, data extraction, search and replace, and input sanitization.
When to Use Regex
- Form field validation (email, phone, etc.)
- Parsing log files and extracting data
- Search and replace in text editors and code
- Input sanitization and filtering
- URL routing and rewriting
Common Regex Tokens
^— start of string$— end of string\d— any digit (0-9)\w— word character (a-z, A-Z, 0-9, _)\s— whitespace+— one or more*— zero or more?— zero or one (optional){n,m}— between n and m occurrences
Related Tools
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