11/08/2022

• AppFlowy.IO : Open Source Notion Alternative
• Riot : Riot allows teams to communicate across a wide range of collaboration apps. If some team members use Riot while others use IRC, Slack or Gitter, Riot ...
• Mattermost : Mattermost is a self-hosted solution for bringing all your team communication to one place, and making it searchable and accessible anywhere
• Keycloak : Keycloak is an Open Source Identity and Access Management solution for modern Applications and Services.
• Zulip : Powerful slack-like open source group chat