Werkery

Regex Tester

Test JavaScript regex patterns against multi-line text. See live matches highlighted, count captures, named groups, and global/case flags.

Tool by ·
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How it works

  1. 1
    Pattern
    Without slashes.
  2. 2
    Flags
    gimsuy.
  3. 3
    Test text
    See matches highlighted.

Frequently asked

Which regex flavor?

JavaScript / ECMAScript. Supports lookbehind, named groups (?<name>...), Unicode \p{...} with u flag.

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Tool designed and editorially reviewed by Felix Brübach. Text drafted with AI assistance and reviewed for legal and factual accuracy before publication. Not legal advice — for complex cases, consult a lawyer.
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