Regex Tester

Test a regex pattern against text. Highlight matches and inspect groups.

Pattern Lab

—

Paste text, write regex, and instantly see highlights + captured groups.

Regex pattern

JS regex syntax (no surrounding / / needed).

Flags

Allowed: g i m s u y d

Text

Highlighted preview

—

Tip: If you expect multiple matches, include g.

Matches

—

Matches will appear here.

Result—

Example: pattern \b\w+@\w+\.\w+\b finds emails

Formula

JavaScript RegExp (global matching)