Regex Tester & Validator

This regular expression is designed to parse lines of text conforming to the IRC (Internet Relay Chat) protocol. It captures three main components: an optional server or user prefix (starting with a colon), the command (either alphabetic like PRIVMSG or numeric like 001), and the command parameters including an optional trailing message starting with a colon. It is highly useful for building IRC clients, bots, or log parsers to extract structured data from raw network traffic.