tools/regex

Regex Lab

Test a regular expression against live text with match highlighting and capture groups, get a plain-English breakdown of every token, and grab common patterns from a library.

Runs on your machine — JavaScript regex engine

Pattern

//g

4 matches

Flags

Scanning always runs global; toggles affect the copied regex.

Common patterns

Test text

Live highlight

Reach the team at hello@atelier.dev or support@example.co.uk. Old inbox othmane.b+test@mail-server.io still forwards. A plain line with no address here. Bounce reports go to no-reply@notifications.example.org.

Matches

00hello@atelier.dev@18

01support@example.co.uk@39

02othmane.b+test@mail-server.io@72

03no-reply@notifications.example.org@174

Breakdown

\bword boundary

[\w.+-]+any one of the set [\w.+-] — repeated one or more times

@literal "@"

[\w-]+any one of the set [\w-] — repeated one or more times

\.literal "."

[\w.-]+any one of the set [\w.-] — repeated one or more times

\bword boundary