Kanboard
Free and open-source Kanban software
Ethical Alternatives & Resources
Team collaboration
Jitsi Meet
Secure, flexible and free video conferencing
Jami
Community-powered Jami aims to provide a universal communication tool
Rocket.Chat
Open-source team communication to replace email and Slack
Riot.im
Slack alternative that allows you to run your own server
Wire
Wire says it's the most secure collaboration platform
Loomio
Social enterprise Loomio aims to be a safe space for teams to make effective decisions
LiquidFeedback
LiquidFeedback is a tool for making fair decisions
Discourse
100% open source discussion platform "built for the next decade of the Internet"
WeChange
Cooperative supporting teams with seminars, consulting and online tools for safe cooperation
Whaller
Create your own secure social networks
Linphone
Open source project for calls and messaging
Mattermost
Flexible, open-source messaging platform
Kantree
Flexible work management platform built by a coop
Kimai
Free & open-source timetracker
Sandstorm
An open-source platform for self-hosting web apps
Twist
Distraction-free teamwork app