Regex Tester

Test regular expressions online and find matching text directly in your browser.

Regular Expression

Flags

Common: g, i, m, s, u

Quick Flags

g — Global i — Ignore Case m — Multiline s — Dotall u — Unicode y — Sticky

Test Text

Matching Results

Click "Test Regex" to see matches.

Your Regex and test text are processed directly in your browser. The text does not need to be uploaded to a server.

What is Regex?

Regular Expression, commonly called Regex, is a pattern used to search and match text.

How to use this tool?

Enter a Regex pattern, enter your test text and click "Test Regex". The matching values will appear below.

Common Regex Examples

Find numbers: \d+

Find words: \w+

Find spaces: \s+

Find 10 digit numbers: \d{10}

What does the g flag mean?

The g flag means Global. It tells the browser to find all matching occurrences instead of stopping after the first match.

Is my text uploaded?

No. Matching is performed locally in your browser.

Is this Regex Tester free?

Yes. The tool is designed for free browser-based Regex testing.