Pattern
/(?:youtu\.be\/|v=)([A-Za-z0-9_-]{11})/Sample text
https://youtu.be/dQw4w9WgXcQ https://www.youtube.com/watch?v=dQw4w9WgXcQ https://example.com/v=notyoutubeTest this pattern in the editor
YouTube video IDs
Pull the 11-char id from common YouTube URLs.
Related patterns
HTTP(S) URLs
Match protocol, host, and optional path/query.
Domain names
Simple FQDN matcher for hostnames in prose.
Usernames
3–16 chars: letter start, then letters, digits, underscore.
URL slugs
kebab-case slugs for routes and CMS paths.
Query parameters
Extract key=value pairs from a query string.
HTML tags
Opening, closing, and self-closing tags (naive).