Regex Tester

Type a regex and test it against sample text. See matches, capture groups, and flags. Runs entirely in your browser.

100% browser-based — no uploads, no server

How to Use

1

Enter a regex pattern

Type your regular expression (e.g. \d+ or (\w+)).

2

Enter test string

Paste or type the text to test against.

3

View matches

See matches, groups, and highlighted regions below.

Frequently Asked Questions — Regex Tester

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