Colanode source
Collaboration suite with real-time messaging, rich text pages, file management, and dynamic databases - built for offline work (alternative to Slack, Notion).
12 self-hosted alternatives to SOGo (2026)
SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface.
Citadel source
Groupware including email, calendar/scheduling, address books, forums, mailing lists, IM, wiki and blog engines, RSS aggregation and more.
Cozy Cloud source
Personal cloud where you can manage and sync your files, notes, contacts, passwords, and documents.
Digipad source
An online self-hosted application for creating collaborative digital notepads (Documentation in french).
Digistorm source
Create collaborative surveys, quizzes, brainstorms, and word clouds (documentation in French).
Digiwall source
Create multimedia collaborative walls for in-person or remote work (documentation in French).
egroupware source
Software suite including calendars, address books, notepad, project management tools, client relationship management tools (CRM), knowledge management tools, a wiki and a CMS.
Group Office source
Enterprise CRM and groupware tool. Share projects, calendars, files and e-mail online with co-workers and clients.
Openmeetings source
Video conferencing, instant messaging, whiteboard, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming.
Tine source
Software for digital collaboration in companies and organizations. From powerful groupware functionalities to clever add-ons, tine combines everything to make daily team collaboration easier.
Tracim
Collaborative Platform for team collaboration: file,threads,notes,agenda,etc.
Zimbra Collaboration source
Email, calendar, collaboration server with Web interface and lots of integrations.