Regex Tester
Try a regular expression against your own text and see every match as you type, along with its position and any capture groups. Invalid patterns show the browser's error message.
How to use the Regex Tester tool
- Enter your pattern in the Pattern box (without the surrounding slashes).
- Enter flags such as g, i, or m in the Flags box.
- Paste the text to search into Test content.
- Review the matches, their index, and capture groups, and copy them if needed.
Frequently asked questions
Which regex flavor is used?
JavaScript regular expressions, exactly as your browser runs them, including flags g, i, m, s, u, and y.
Why do I only see one match?
Without the g (global) flag a regular expression stops at the first match. Add g to find them all.
Do I need to escape backslashes?
No. Type the pattern as you would between slashes in JavaScript, for example \d+ for one or more digits.
Private by design
Everything runs in your browser. The text you paste is not uploaded, stored, or logged by AblePro.
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