8 Best Open Source Google Workspace Alternatives
A curated collection of the 8 best open source and self-hosted alternatives to Google Workspace in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Google Workspace in 2026? The top open-source alternative is Paperless-home — Open-source document management for homes and offices.
Other highly rated open-source Google Workspace alternatives include Tuta, CryptPad and ONLYOFFICE Docs.
Open-source document management for homes and offices
Paperless is a self-hosted document management system that helps you digitize, organize, and search paper documents effortlessly. Designed for both personal and professional use, it eliminates the chaos of physical paperwork while providing powerful features like full-text search, AI-assisted insights, and automatic categorization. - Full-text search: Instantly find any document by searching through its content. - AI Assistant: Ask questions about documents or your entire archive and get instant summaries, key data, and due dates. Bring your own AI provider key. - Auto-organizing: Set up rules to automatically categorize, tag, and file documents. - Multi-format support: Handle PDFs, JPG, PNG, TIFF, DOCX, XLSX, CSV, and more. - Mobile apps: Android and iOS apps for capturing and accessing documents on the go. - Custom exports: Download documents with your preferred folder structure. - Multi-user support: Share access with family or colleagues with custom permissions. - Privacy-focused: Hosted in Europe with strict GDPR compliance and no vendor lock-in. - Eco-friendly: Reduce paper waste by digitizing your documents. - Open-source: Independently auditable software with frequent updates. Paperless is built on Python and Django, with a PostgreSQL database backend. It can be self-hosted on any server or cloud platform, or used via the hosted service provided by Paperless-Home. The open-source core (paperless-ngx) is available on GitHub for community contributions and custom deployments.
Privacy-first encrypted email, calendar & contacts
Tuta is a privacy-first email service that provides secure communication through end-to-end encryption, ensuring your data remains private and protected. Built with quantum-resistant encryption, Tuta offers a seamless experience for email, calendar, and contacts management without ads or tracking. - Quantum-resistant encryption for maximum data protection - End-to-end encrypted email with intuitive design for fast workflows - Zero-knowledge calendar that respects your privacy - Ad-free and tracking-free interface - Cross-platform support with apps for Android, iPhone, and web - Custom domain support for professional email addresses - Push notifications for calendar events on all devices - Open-source with transparent security practices Tuta is open-source and available as a self-hosted solution. The project is developed in TypeScript and can be deployed on your own infrastructure for full control over your data. Visit the GitHub repository for deployment instructions and technical details.
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
Secure online office suite compatible with MS Office
ONLYOFFICE is a secure online office suite designed for document editing, collaboration, and PDF management. Highly compatible with Microsoft Office formats, it offers a range of features for individuals and enterprises. - Document Editing & Collaboration: View, edit, and collaborate on documents, spreadsheets, and presentations in real-time with character- and paragraph-level co-editing modes. - PDF Management: Build and fill PDF forms, edit PDFs, convert documents to PDF, and extract text from scanned PDFs. - AI-Powered Tools: Generate documents, sheets, and slides using AI assistants. Translate, rewrite, check grammar, and extract text from scanned PDFs. Supports integration with local AI models. - Security & Compliance: Open-source code, compliance with international security standards, three levels of encryption (at rest, in transit, end-to-end), secure access, and extra document permissions. - Multi-Platform Integration: Connect ONLYOFFICE Docs to 40+ platforms like Box, Moodle, Nextcloud, and WordPress. Integrate into custom services or use desktop and mobile apps for offline editing. - Collaboration Features: Share documents for viewing, editing, reviewing, or filling forms. Compare and track changes, leave comments, and communicate via built-in chat or Telegram. ONLYOFFICE Docs is open-source and can be self-hosted. It supports integration with various platforms and offers a developer edition for custom integrations. The software is available for Windows, Linux, macOS, iOS, and Android. Learn more about ONLYOFFICE Docs features Learn more about ONLYOFFICE collaboration features Learn more about AI in ONLYOFFICE Learn more about ONLYOFFICE security features
Free and private office suite, no forced AI
LibreOffice is a free and open-source office suite created by a global community of contributors. It provides a comprehensive set of tools for word processing, spreadsheets, presentations, databases, vector graphics, and mathematical formulas—all without forced AI integration. - Writer: Powerful word processor for notes, documents, and books - Calc: Advanced spreadsheet tool for data analysis and visualization - Impress: Create engaging multimedia presentations - Draw: Design diagrams, flowcharts, and 3D illustrations - Base: Manage databases with tables, forms, and reports - Math: Visual editor for mathematical formulas - Multi-language support: Available in over 100 languages - Cross-platform: Works on Windows, macOS, and Linux - No forced AI: Completely free from AI dependencies or tracking - Community-driven: Developed and maintained by volunteers worldwide LibreOffice is a desktop application that can be self-hosted by installing the software locally. It does not require cloud services or external dependencies. The source code is available on GitHub under the Mozilla Public License v2.0.
Self-hosted office suite for collaborative document editing
Collabora Online is a powerful, open-source office suite that provides real-time collaborative editing for documents, spreadsheets, and presentations. Built on LibreOffice technology, it offers a familiar interface while ensuring data privacy through self-hosting capabilities. - Real-time collaboration: Multiple users can edit documents simultaneously with changes reflected instantly. - Full office suite: Includes Writer (text documents), Calc (spreadsheets), Impress (presentations), and Draw (graphics). - Self-hosted deployment: Host on your own infrastructure for complete data control and privacy. - Cross-platform compatibility: Works on desktop, web browsers, and mobile devices (iOS/Android). - Enterprise-grade security: Supports encryption, access controls, and compliance with GDPR and other standards. - Integration ecosystem: Seamlessly integrates with platforms like Nextcloud, ownCloud, and other document management systems. - Scalable architecture: Supports large deployments with the Collabora Online Controller for Kubernetes. - Offline editing: Available through Collabora Office desktop applications. Collabora Online is open-source software that can be self-hosted on Linux servers. It supports Docker containers for easy deployment and integrates with various cloud storage solutions. The software is compatible with major Linux distributions and can be deployed in Kubernetes environments for large-scale deployments. Documentation and community support are available for setup and configuration.
All-in-one productivity platform with short links and AI tools
LikeDo is an all-in-one productivity platform designed to consolidate essential tools into a single, user-friendly interface. Whether you're an individual looking to streamline workflows or a professional managing multiple projects, LikeDo offers a centralized solution for short links, domain-based emails, AI-assisted content creation, and secure file storage. - AI Agent & Automation: Build and manage custom AI agents to automate daily tasks with multi-model support, conversation history, and knowledge base management. - Short Links: Generate flexible short links with real-time tracking, custom suffixes, private subdomains, password protection, and UTM tracking. - Email Service: Create domain-based email addresses with custom prefixes, unlimited receiving, AI-assisted email generation, forwarding, and push notifications. - Post Management: Rich text editor with AI-powered writing assistance, folder organization, advanced share links, and bidirectional post links. - File Storage & API: Secure file storage with flexible API access, custom subdomains, and detailed analytics. - Open Source & Self-Hostable: Deploy the open-source version for full data control and customization. LikeDo is open-source and supports self-hosting, allowing users to deploy the platform on their own infrastructure. The self-hosted version provides full control over data, configuration, and security settings, making it ideal for privacy-conscious users and organizations. The platform is built with modern web technologies and offers flexible deployment options to suit various technical environments.
Team chat with AI agents and unified workspace
Macro is a modern team collaboration platform that unifies chat, email, tasks, and AI agents into a single workspace. Designed for teams that want to reduce context switching, Macro offers inline threads, instant @mention sharing, and AI-powered assistance with full workspace context. - Inline threads & forum discussions: Keep conversations organized with threaded replies directly below messages. - @mention sharing: Instantly share docs, tasks, or email threads with channel members without permission dialogs. - Unified inbox: Combine email, chat, and tasks in one place for streamlined workflows. - AI agents with context: Type @Macro to summon an agent that summarizes missed conversations, drafts replies, or answers questions using your workspace data. - Built-in tasks & docs: Create and manage tasks and documents natively within the chat interface. - Unified search: Search across channels, email, docs, and tasks with a single query. - Open source (AGPLv3): Self-hostable and auditable, ensuring full control over your data. - Enterprise-ready: Includes CRM, calls, and advanced collaboration tools in a single seat. Macro is open source under the AGPLv3 license and can be self-hosted for complete data control. The platform prioritizes security with private, encrypted workspace data and offers flexible deployment options. For teams preferring a managed solution, Macro provides a hosted version with all features included.
About Google Workspace
Google Workspace is a cloud-based productivity and collaboration platform designed to help teams and individuals work more efficiently. Built on Google's secure infrastructure, it combines familiar tools like Gmail, Drive, Docs, and Meet into a unified workspace.
Key Features of Google Workspace
- Gmail: Professional email with custom domains and advanced security features
- Drive: Secure cloud storage with real-time collaboration
- Docs, Sheets, Slides: Collaborative document editing with AI-powered features
- Meet: High-quality video conferencing with built-in noise cancellation
- Chat: Team messaging with threaded conversations
- Calendar: Shared scheduling and event management
- Admin Console: Centralized management for organizations
- Security: Built-in protections against phishing, malware, and data loss
- AI Integration: Gemini-powered features across the suite
- Cross-platform: Available on web, mobile, and desktop
Tech / Self-Hosting
- Cloud-based: No self-hosting required (SaaS model)
- Enterprise-grade security: SOC 2, ISO 27001, and GDPR compliant
- Global infrastructure: Data centers across multiple regions
- API access: Extensive APIs for custom integrations
- Third-party integrations: Connects with thousands of business apps