Pattern
/\b\d{5}(?:-\d{4})?\b/Sample text
94107 94107-1234 9410Test this pattern in the editor
US ZIP codes
5-digit ZIP or ZIP+4.
Related patterns
Email addresses
Capture local and domain parts from common email shapes.
HTTP(S) URLs
Match protocol, host, and optional path/query.
24-hour time
Match HH:MM or HH:MM:SS clock times.
Strong-ish password
Require length and mixed character classes (demo only).
Usernames
3–16 chars: letter start, then letters, digits, underscore.
URL slugs
kebab-case slugs for routes and CMS paths.