Regex Tester
Regex Tester
About Regex Tester
Test regular expressions against sample text in real time. See matches highlighted instantly and debug your patterns before using them in code.
Regex Tester FAQs
How do I enter a regex pattern?
Enter your regex pattern in the first input field and the test string in the second input field. The tool will show all matches found in the test string.
What regex flags are supported?
The tool uses the global (g) flag by default to find all matches. You can include flags like i (case-insensitive) or m (multiline) by adding them to your pattern.
Why does my regex work here but not in my code?
Different programming languages have slightly different regex engines. This tool uses JavaScript's RegExp engine. Python, Java, and other languages may handle certain patterns differently.