Self-hostable software: Groupware Suites (45)

Nextcloud Server is a self-hosted platform for storing, syncing, and sharing files, contacts, calendars, and other data.

Seafile is an open source cloud storage system with file syncing, sharing, collaboration, and privacy protection features.

mailcow is a dockerized mail server suite for self-hosted email management.

ownCloud Core is a self-hosted file sharing and collaboration platform for storing, syncing, and sharing files, calendars, contacts, and other data.

CryptPad is an end-to-end encrypted collaboration suite for real-time editing of documents and other team content.

HumHub is an open-source social networking and collaboration platform for intranets, knowledge bases, and community spaces.

A collaborative online office suite for viewing, editing, creating, and exporting documents, spreadsheets, presentations, forms, PDFs, and diagrams.

OpenCloud Server Backend is the Go-based backend service for the OpenCloud server, handling authentication and filesystem-based data storage.

Colanode is an open-source, local-first collaboration workspace you can self-host for chat, documents, databases, and file management.

Baïkal is a CalDAV and CardDAV server for syncing calendars and contacts.

NextcloudPi is a ready-to-use build and deployment image for running Nextcloud on supported hardware, containers, and Debian-based systems.

Loomio is a decision-making tool for collaborative organizations.