Regex Tester Tool - Test Regular Expressions Online
Real-time testing with highlighted matches and capture groups
Regex Tester
Test regular expressions online with real-time matching and highlighting
Match Results
Highlighted Text
Common Examples
How to Use
- Enter your regular expression pattern in the "Regular Expression" field
- Enter the text you want to test in the "Test Text" field
- Select the regex flags you need (g=global, i=case insensitive, m=multiline, s=dotall, u=unicode)
- Click "Test Match" button or see results in real-time
- Matched text will be highlighted in the "Highlighted Text" section
- If there are capture groups, they will be displayed in the results
- Click "Common Examples" to quickly load common regex patterns