The encyclopedia · Software & IT · Technical decision · 1988–1993
IRC won 1990s text chat by giving away the protocol and the server code
Jarkko Oikarinen wrote IRC at the University of Oulu in 1988; once the code was freed, servers spread and RFC 1459 made it anyone's standard.
University of Oulu
the move
In August 1988, Jarkko Oikarinen wrote the first IRC server and client at the University of Oulu in Finland, intending to add live chat to his BBS. The code was eventually freed by the university, and friends installed servers at other Finnish universities.
IRC's design was deliberately minimal: a text-based protocol where the simplest client is any socket program that can connect to a server, and channels let many users talk at once. By November 1988 it had spread across the Internet, and by mid-1989 there were about 40 servers worldwide.
In May 1993, RFC 1459 documented the protocol, so anyone could implement a compatible client or server. Because IRC was free while commercial services were closed, it became the default chat network for developers and communities through the 1990s.
why it works
- Open server code let anyone join the network without permission.
- A text protocol meant tiny clients could connect from anywhere.
- Channels made group conversation a first-class feature.
- RFC 1459 gave independent implementations a common contract.
what transfers
If you want a communication standard to spread, make the protocol so simple that the cheapest client works and the server software free to run; openness beats features when the goal is ubiquity.
what came after
IRC networks peaked at hundreds of thousands of users in the mid-2000s (QuakeNet alone above 200,000), and open projects still run on Libera Chat; it declined as social platforms arrived, but its free-and-open model shaped later chat standards.
references
spotted an error? The archive wants to know.