Regex Tester
Test regular expressions with live pattern matching.
Matches
No regex entered
Regex Tester Tool
Test your regular expressions against sample text with live feedback. See all matches and groups in real-time.
What is a Regular Expression?
A regular expression (regex) is a pattern that matches strings or portions of strings. It's used in programming for text search, validation, and replacement operations.
Common Use Cases
- Email validation:
[\w\.-]+@[\w\.-]+\.\w+ - Phone numbers:
\d{3}-\d{3}-\d{4} - URLs:
https?:// - Extract numbers:
\d+