Regex Pattern Builder

Build regular expressions by clicking tokens — then test matches live with highlighting.

Click to add tokens:

Pattern:

g global

i case-insensitive

m multiline

Test text:

0Matches

Highlighted matches:

Matches appear here…

How to use

Click tokens to build a pattern, set flags, type test text, and watch matches highlight. Everything runs in your browser.

Do I need to know regex syntax?

No — click token buttons (digit, word, email part…) and the pattern assembles itself.

Can I test my pattern?

Yes — type test text and every match is highlighted live with a match count.

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Every tool runs 100% in your browser — no uploads, no signups. If a tool saved you time, consider supporting us with a small donation.