What does Regex Tester do?

Regex Tester is a free online tool that helps you regex tester. It's easy to use and works directly in your browser.

Regex Tester

Free online regex tester to build, test, and debug regular expressions in real time. See matches and capture groups highlighted as you type, right in your

Regular Expression:

Flags: g=global, i=ignore case, m=multiline

Test String:

About Regex Tester

Test and debug regular expressions.

Our Regex Tester is completely free to use and requires no signup. All processing happens directly in your browser, ensuring your data stays private.

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