Dev Utilities

Regex Tester

Write a regular expression and test it against any text. See matches highlighted in real time, inspect capture groups, and use common patterns as a starting point.

/ /
Flags
global, case insensitive
Enter a pattern and test string to get started
Test string
Replace with
Matches
No matches yet
Capture groups
No groups captured
Common patterns
Email [\w.-]+@[\w.-]+\.\w{2,}
URL https?://[^\s]+
Phone (US) \d{3}[-.]?\d{3}[-.]?\d{4}
HEX color #[0-9a-fA-F]{3,6}
IP address \d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}
Trim whitespace ^\s+|\s+$
Capitalized words \b[A-Z][a-z]+
Numbers \d+