Regular Expression Tester
Test and validate regular expressions with live results and match highlighting.
Regular Expression
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Test String
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Results
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Common Patterns
Click to use these common regex patterns
Email
^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA...
Phone (US)
^$$?([0-9]{3})$$?[-. ]?([0-9]{3})[-. ]?(...
URL
^https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#...
IP Address
^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-...
Credit Card
^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{...
Password (Strong)
^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!...
Date (YYYY-MM-DD)
^\d{4}-\d{2}-\d{2}$
Hex Color
^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$
Regex Quick Reference
Character Classes
.- Any character\d- Digit (0-9)\w- Word character\s- Whitespace[abc]- Character set[^abc]- Negated set
Quantifiers
*- 0 or more+- 1 or more?- 0 or 1{n}- Exactly n{n,m}- Between n and m
Anchors
^- Start of string$- End of string\b- Word boundary\B- Non-word boundary