Regex Tester & Builder
Build regex patterns without knowing the syntax
Build a Regex Pattern
Options
This regex type is pre-configured. Switch to "Tester" mode to customize it.
✓ Generated Regex
Matches a valid email address
//Matches
Enter a test string to see matches
Regex Quick Reference
Character Classes:
.- Any character except newline\d- Digit (0-9)\w- Word character (a-z, A-Z, 0-9, _)\s- Whitespace[abc]- Any of a, b, or c[^abc]- Not a, b, or c
Quantifiers:
*- 0 or more+- 1 or more?- 0 or 1{n}- Exactly n times{n,}- n or more times{n,m}- Between n and m times