Regex URL Patrones Referencia
Referencia para URL validation y parsing regex patrones para various URL formats.
URL Validation Patterns
A basic URL pattern: ^https?://[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}(/.*)?$ checks scheme, host, and optional path. More complete patterns include port, query, and fragment: ^https?://[^:/]+(:\d+)?(/[^?#]*)?(\?[^#]*)?(#.*)?$. Full RFC 3986 compliance is extremely complex and better handled with URL parsers. For validation, prefer the URL constructor (new URL()) over regex. Regex is useful for extracting URLs from text. The pattern https?://\S+ extracts URLs but may include trailing punctuation.
- basic
- Scheme + host + path
- complete
- Port, query, fragment
- extraction
- https?://\S+
simple checkmore partsfrom textProtocol-Specific Patterns
HTTP/HTTPS: ^https?://... (web URLs). FTP: ^ftp://... (file transfer). WebSocket: ^wss?://... (WS protocol). File: ^file:///... (local files). Data: ^data:[a-z]+/[a-z]+;base64,... (embedded data). Magnet: ^magnet:\?xt=urn:btih:... (torrent). Custom schemes (myapp://) follow the same URI pattern. Internationalized domain names (IDN) contain Unicode and need Punycode for DNS. Always use the URL API for parsing; regex for extraction only.
- http(s)
- Web URLs
- ws(s)
- WebSocket URLs
- data:
- Embedded data
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