Test and debug regular expressions with live match highlighting. Toggle flags, use preset patterns, and see detailed match information.
Enter a regex pattern and test string above
Test and debug regular expressions with live match highlighting. Toggle flags, use preset patterns, and see detailed match information.
It is built for fast troubleshooting and day-to-day developer work, so you can paste input, inspect the result, and move on without extra setup.
Test and debug regular expressions with live match highlighting. Toggle flags, use preset patterns, and see detailed match information.
Enter or paste your values into the fields or input areas above. Adjust the available settings until the result matches the exact output you need. Use the live result, copy the output, or compare multiple scenarios as you work.
Regex Tester is free to use, and the work happens directly in your browser so you can try inputs and options without sending data to a remote server.
Regex Tester is useful for anyone who wants a fast browser-based utility without unnecessary setup or uploads.