Regex Tester
Test and debug regular expressions with real-time matching
Regular Expression Pattern
Enter your regular expression pattern here. The pattern will be tested against the text below.
Enter your regular expression pattern. Invalid patterns will be highlighted in red with error messages.
Type your regex pattern here. The pattern will be validated and tested against the text below in real-time.
Set regex flags to modify matching behavior. Common flags: g (global), i (case-insensitive), m (multiline).
Enter regex flags like 'g' for global search, 'i' for case-insensitive, 'm' for multiline matching.
Common Patterns
Pre-defined regex patterns for common use cases like email validation, phone numbers, URLs, and more.
Load the Email Address pattern with its description and example usage.
Load the Phone Number pattern with its description and example usage.
Load the URL pattern with its description and example usage.
Load the Date (YYYY-MM-DD) pattern with its description and example usage.
Load the IPv4 Address pattern with its description and example usage.
Load the Strong Password pattern with its description and example usage.
Load the Credit Card pattern with its description and example usage.
Test Text
Enter text to test against your regex pattern. Matches will be highlighted and displayed in the results section.
Load emails test examples to demonstrate the regex pattern matching.
Load phoneNumbers test examples to demonstrate the regex pattern matching.
Load urls test examples to demonstrate the regex pattern matching.
Load dates test examples to demonstrate the regex pattern matching.
Enter or paste text here to test against your regex pattern. Matches will be highlighted in real-time.
Matches (0)
List of all matches found by the regex pattern, including full matches and capture groups.
Copy all matched text to your clipboard for use in other applications.
No matches found
Detailed view of all matches found by the regex pattern, showing full matches, capture groups, and positions.
Highlighted Text
Visual representation of the test text with all regex matches highlighted in yellow.
The test text with all regex matches highlighted in yellow for easy identification.
Replace
Replace all matches of the regex pattern with specified text and see the result.
Enter the text that will replace all matches of the regex pattern.
Type the replacement text here. This text will replace all matches found by the regex pattern.
Perform the replacement operation using the regex pattern and replacement text.
Copy the replaced text result to your clipboard.
Clear all inputs including pattern, test text, flags, and results to start fresh.