List of FOSS chat systems


With corporations and governments become ever more invasive I'm looking into alternative communication channels to stay in touch with my contacts. Alas, I haven't been able to convince any of them to switch permanently (damn you network effects!). Still, I'm using some of these alternatives as they have proven to be useful.

Below is a list of FOSS chat protocols and associated applications I've found. While this is by no means an exhaustive list, I believe all of them have a real potential to displace the potential of current proprietary messengers. All of the listed messengers allow you to self-host.