Friends vs Riot.im : What are the differences?
Friends: Like Slack except P2P, offline friendly, and open source. Friends is like Slack except P2P, offline friendly and open source. We transmit data over secure channels and authenticate messages. It's made by a group of open source developers who are motivated to make a public chat platform that is easy to use but isn't centrally controlled, and where data is owned by its users; Riot.im : An open source instant messaging client. It supports end to end encryption, groups, channels and sharing of files between users, also registration does not require a phone number.
Friends and Riot.im belong to "Group Chat & Notifications" category of the tech stack.
Friends is an open source tool with 3.06K GitHub stars and 365 GitHub forks. Here's a link to Friends's open source repository on GitHub.