Open Source

are there any users?

How many people are using open-source software?

  • Linux is believed to have somewhere between 4 and 27 million users
  • Apache web server to have over 60% and steadily increasing market share
  • The Internet Operating System Counter (operating system usage on the Internet in Europe) shows Linux is the most popular Internet-connected operating system.

Indirectly, everybody who sends email or uses the Web is using open-source software all the time. The running gears of the Internet (its mail transports, web servers, and FTP servers) are almost all open source.