All Tools VerseRegex Tester
Test a regular expression against your text, with flags, and see every match.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Processed locally in your browser. Your text never leaves this tab.
How to Use Regex Tester
- Enter a pattern and flags. The regex and any flags like g or i.
- Paste test text. The text you want to search.
- Test. Every match is found and listed.
- Copy the result. Click Copy result. It all runs in your browser.
Frequently Asked Questions
Which flags can I use?
Any combination of g, i, m, s, u, and y, the standard JavaScript regular expression flags.
What does it return?
The number of matches and each matched piece of text, or a message if there are none.
What if my pattern is invalid?
The tool reports the error from the regular expression engine so you can fix the pattern.
Is my data sent anywhere?
No. The test runs entirely in your browser, so your text never leaves the tab.
Is it free?
Yes. Every tool here is free to use with no sign up.
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