Best Self-hosted Collaborative Office Suites tools in 2026
16 self-hosted open source alternatives in this category
See also:
Calendars & Contacts (CalDAV/CardDAV)Email Servers (SMTP/IMAP)Team Chat & MessagingVideo Conferencing & WebRTCVoIP / SIP & PBXWebmail Clients16 services found
AppFlowy
Open-source collaborative workspace and Notion alternative
Open-source, privacy-focused collaborative workspace for notes, databases, kanban boards and AI-assisted writing; desktop, mobile and web clients with local-first storage...
AFFiNE
Open-source, local-first knowledge workspace for docs, whiteboards and databases
All-in-one, privacy-focused workspace that merges docs, whiteboards and databases with real-time collaboration and multimodal AI assistance.
Nextcloud
Open-source collaboration platform for file sync and groupware
Nextcloud is an open-source content collaboration platform providing file sync & share, groupware (calendar, contacts, mail), real-time office editing, chat and video con...
Etherpad
Real-time collaborative text editor with plugin extensibility
Etherpad is a web-based real-time collaborative editor with chat, rich-text formatting, and a plugin framework for customization and integrations.
Overleaf
Web-based collaborative LaTeX editor
Open-source, web-based LaTeX editor for real-time collaboration, project management, and PDF compilation in the browser.
CryptPad
End-to-end encrypted collaborative office and document suite
CryptPad is an end-to-end encrypted collaboration suite with real-time editors, file storage, and sharing, designed to keep document contents private from servers and adm...
ONLYOFFICE Docs
Collaborative online editors for documents, spreadsheets, and presentations
Self-hostable online office suite for viewing and collaboratively editing documents, spreadsheets, presentations, PDFs, and forms with strong OOXML compatibility.
Pydio Cells
Self-hosted enterprise file sharing and collaboration platform
Self-hosted, secure platform for file sharing, collaboration, and document management with no vendor lock-in.
Cypht
Open-source webmail and RSS aggregator built from modular plugin sets.
Cypht is an open-source PHP/JavaScript webmail and RSS aggregator built from modular plugin sets, unifying multiple accounts with search and server-side filters.
Nextcloud Office
Collaborative online office suite integrated into Nextcloud
Self-hosted collaborative office suite for Nextcloud providing real-time editing, high-fidelity rendering and support for DOCX, XLSX, PPTX and ODF formats.
Tracim
Modular team collaboration platform for files, chat, and documentation
Tracim is an open-source collaboration suite offering threaded conversations, file sharing with versioning, collaborative pages, tasks and workspace organization.
Nextcloud Tables
Spreadsheet-style table builder and data management app for Nextcloud
Create, share and combine structured tables and views inside Nextcloud. Supports templates, CSV/spreadsheet import, custom columns, filtered views and an OpenAPI-backed A...
tine
PHP-based modular groupware for calendar, contacts, email, CRM and files
Open-source PHP groupware providing CalDAV/CardDAV, ActiveSync, email client, CRM, tasks, file manager and Docker images for on-premise collaboration.
Collabora Online Development Edition (CODE)
Development build of Collabora Online for web-based office editing
Collabora Online Development Edition (CODE) provides a self-hosted LibreOffice-based online editor for documents, spreadsheets and presentations for testing or small team...
Stackspin
Open source collaboration suite with SSO and admin dashboard
Stackspin is an open source platform that bundles common team collaboration apps with single sign-on, centralized user management, backups, and monitoring for admins.
WikiSuite
Integrated suite for knowledge management, collaboration, and IT admin
WikiSuite is an integrated open source suite combining wiki/groupware, chat and conferencing, webmail, search, and infrastructure management for organizations.