COSCUP is an annual conference held by Taiwanese Open source community participants since 2006. It’s a major force of Free software movement advocacy in Taiwan. The event is often held with talks, sponsor and communities booths, and Birds of a feather. In addition to international speakers, many Taiwanese local Open Source contributors often give their talks here. The chief organizer, staffs, and speakers are all volunteers.

COSCUP’s aim is providing a platform to connect Open Source coders, users, and promoters, and promote FLOSS with the annual conference. The conference is free to attend because of the enthusiastic sponsors and donators.