EasyChair is developed by a for-profit corporation using the freemium business model. Its source code is not available to its users, despite this tool being often used for academic purposes.
Indico
Indico is a FLOSS event management tool developed by CERN. It is also used by the United Nations and national agencies, due to its non-profit nature. One public, free instance is made available as a sandbox. In addition, it is self-hostable.
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