Master regular expressions with real-time testing and debugging
Regular expressions (regex) are powerful patterns used to match character combinations in strings. They're essential for text processing, validation, search and replace operations, and data extraction.
Type your regex pattern in the "Pattern" field. Don't include the forward slashes (/) - just the pattern itself.
Choose appropriate flags like global (g), case-insensitive (i), or multiline (m) to modify how the pattern matches.
Enter the text you want to test against your pattern in the "Test String" field.
See matches highlighted in real-time, with detailed match information and capture groups displayed.
Start testing and debugging your regular expressions with our powerful regex tester.