European Microsoft Teams Alternatives

Voxbi replaces traditional on-premises phone hardware and vendor-dependent systems with a cloud PBX you manage yourself through a web app. It's built for European businesses that need their call data to stay within EU borders and want to avoid the weeks-long ticket queues typical of legacy phone providers.

The core appeal is speed and control. Instead of opening a support ticket to change an IVR menu or call routing rule, you edit it in the Cockpit (Voxbi's web interface) in minutes. Your team can make and take calls from Microsoft Teams without switching apps. Contact sync works with Odoo. For other tools, REST API and TAPI CTI let you build custom integrations like click-to-call from your CRM.

Data residency and compliance are built in, not added later. Calls, recordings, and metadata stay in European data centers. GDPR compliance is part of the platform architecture. The system is also ready for the EU AI Act. Encryption covers HTTPS, SIP TLS, and WebRTC across all channels.

Live analytics show call volume, queue activity, and trends as they happen. You can drill into history to spot where to improve. The system scales from 5 to 5,000+ users on the same infrastructure, and you can port your existing phone numbers with zero downtime.

Voxbi is sold through certified IT integrators and resellers across Europe rather than direct. They handle setup, number porting, and post-launch support. The company is based in Luxembourg with 18 years of European telecom experience behind it, and serves over 5,000 businesses across 26 countries.

Transform your browser into a complete business workspace with email, team chat, video conferencing, and document collaboration all integrated seamlessly. This EU-made platform eliminates the need for multiple tools by bringing everything together in one interface.

Key features include:

• Professional email with custom domains and ChatGPT integration for enhanced productivity
• TeamChat and video conferencing supporting up to 1,000 attendees with webinar mode
• Real-time document collaboration for creating and editing docs, spreadsheets, and presentations
• Shared calendars with appointment booking and task management
• Cloud storage with file sharing and mobile access

Choose between cloud hosting or self-hosted deployment for complete control over your data. The platform offers flexible pricing starting at $3.50/user/month and includes a 30-day free trial with full feature access.

Mobile and desktop apps ensure productivity anywhere, while managed migration services make switching from Microsoft 365, Google Workspace, or other platforms seamless. Trusted by 50,000+ businesses worldwide with 24/7 enterprise support available.

Matrix.org offers a revolutionary approach to digital communication through its open protocol for secure, decentralized messaging. Unlike traditional messaging platforms, Matrix creates an open network where users maintain control over their data and communications.

The platform enables seamless communication across different applications and services, breaking down the silos that typically separate messaging platforms. Users can chat with friends, family, communities, and co-workers through a unified protocol that prioritizes privacy and security.

Key features include:

• End-to-end encryption for all communications
• Decentralized architecture preventing single points of failure
• Cross-platform compatibility across multiple clients and devices
• Rich ecosystem of clients, servers, bots, and application services

Matrix serves as both a communication platform and a development foundation for building advanced messaging applications. The protocol supports everything from simple text messaging to complex collaborative tools, making it ideal for communities, organizations, and developers seeking secure communication solutions.

The Matrix.org Foundation guides the protocol's development, ensuring it remains open, secure, and accessible to all users while fostering innovation in decentralized communication technology.

This platform offers a comprehensive solution for video conferencing, online meetings, and webinars, designed to seamlessly bring together your students, customers, and team members. A key advantage is that no installation is required, allowing participants to join instantly from any device with a web browser. This accessibility makes it ideal for various applications:

• For Educators and Students: Facilitate interactive online classes, host virtual office hours, and share educational content effortlessly.
• For Businesses and Customers: Conduct engaging product demonstrations, host live Q&A sessions, provide remote customer support, and build stronger client relationships.
• For Internal Teams: Improve collaboration with remote colleagues, conduct effective team meetings, deliver internal training, and ensure clear communication across departments.

Experience smooth, reliable connections and user-friendly tools to make your virtual interactions productive and engaging. Share your screen, record sessions for later review, and interact with your audience through integrated chat and Q&A features. Get started quickly and connect with anyone, anywhere, without the hassle of software downloads.

Jitsi offers free, open-source video conferencing for both web and mobile platforms. It prioritizes security and flexibility, allowing users to make calls without needing an account. Key benefits include:

• Enhanced Security: All communications are encrypted, ensuring your conversations remain private.
• Complete Flexibility: Use Jitsi Meet directly for quick calls, launch it on your own servers for full control and data sovereignty, or integrate its powerful video capabilities into your existing applications.
• No Account Needed: Start or join meetings instantly without mandatory sign-ups, making it accessible for everyone.
• Open Source: Benefit from a transparent, community-driven platform that is constantly evolving.
• JaaS (Jitsi as a Service): For those who prefer a managed solution, the team behind Jitsi can run the service for you, taking care of infrastructure and maintenance.
• SIP Integration: Connect seamlessly with various devices, including hardware phones and other video conferencing systems, expanding your reach.
• Scalability: Features like SSRC rewriting enhance performance for very large calls, ensuring a smooth experience even with many participants. Jitsi is a robust alternative for individuals, businesses, and organizations, including educational institutions, seeking private and customizable video communication.

Stackfield is a comprehensive collaboration platform designed specifically for organizations handling sensitive data. Built and hosted in Germany, this all-in-one solution combines project management, team communication, and document collaboration with military-grade end-to-end encryption.

Key features include:

• Task management and workflows with clear visibility for all team members
• Real-time project communication through group chats, discussions, and comments
• Video conferencing and screen sharing for efficient remote collaboration
• Collaborative document editing with centralized knowledge management
• Interactive whiteboards for brainstorming and process visualization
• Timeline and portfolio views for comprehensive project oversight

Security is paramount - all data is encrypted directly in your browser before transmission, ensuring that even Stackfield cannot access your messages, files, or tasks. The platform meets ISO 27001 certification standards and complies with EU-GDPR regulations.

Trusted by over 10,000 companies since 2012, Stackfield serves government agencies, banks, insurance companies, law firms, and universities that require the highest levels of data protection. Available across all devices with 2-factor authentication, Single Sign-On, and DDoS protection for enterprise-grade security.

Wire is a Swiss-based secure collaboration platform that provides always-on end-to-end encryption without compromising usability. Trusted by over 1,800 organizations worldwide, Wire offers seamless communication through instant messaging, file sharing, and video meetings.

Key features include:

• Zero-knowledge encryption that keeps data protected and compliant
• Flexible collaboration across teams and external parties
• SAML-based Single Sign-On and SCIM support for enterprise
• Complete data sovereignty with on-premises deployment options
• Granular administrative controls for complex organizations

Wire serves as a European alternative to Microsoft Teams and Slack, particularly valuable for organizations requiring NIS2 compliance and data protection. The platform supports government agencies, law enforcement, and enterprises with federated environments and ID Shield protection.

With crisis communication capabilities and comprehensive support for distributed teams, Wire enables secure collaboration without the typical security friction that hampers productivity.

Seamlessly embed video calling into your platform using a flexible API and SDK, particularly suited for Telehealth and Digital Mental Health applications. This solution offers a quick start with a Pre-built UI, which can be embedded via an iframe or web component, and allows for full customization using a Browser SDK with React hooks.

Key benefits include:

• Secure and private: Users' privacy, confidentiality and security are paramount. The service is GDPR and HIPAA compliant, and ISO 27001 certified.
• Reliable and scalable: The infrastructure is designed to support your growth, maintaining a consistently high-quality video call experience.
• Easy to implement: The SDK and API enable you to create a truly bespoke solution without unnecessary heavy lifting from your engineering team.
• Dedicated support: Access developer documentation and a dedicated Solutions team for assistance.

Includes built-in features such as:

• Screen share
• Pre-call checks
• Live chat
• Waiting room
• Recording
• Custom branding

Organize your personal and business life with a tool designed for simplicity and effective task management. Since 2007, users have chosen this platform to get things done without overwhelm. It's intuitive like email but far more structured, helping your team adapt quickly and focus on priorities.

Key benefits:

• Fewer, Efficient Meetings: Manage work asynchronously in projects and tasks, reducing status updates. Meetings become shorter and more effective with documented discussions.
• Increased Team Productivity: Help your team achieve more. Track all tasks and commitments, ensuring nothing is missed, leading to better results.
• Flexible Remote & Hybrid Work: Access work from anywhere with cross-platform apps (Mac, Windows, Android, iOS) that sync and work offline. Your office in the cloud.
• Better Work-Life Balance: Separate professional and private workspaces to maintain focus and efficiency in all areas of life.

Core features include Projects, Tasks with deadlines, Comments for clear communication, and customizable Views. Convert emails to tasks, use project templates, and share projects externally.

Digital Samba offers video conferencing that works like Zoom or Teams but respects your privacy. No account required. No downloads. No tracking. Just click to start a call or generate a meeting link that stays active for 30 days.

The platform runs entirely on European infrastructure with European-owned sub-processors, giving you true data sovereignty. End-to-end encryption protects your most sensitive calls, while instant access means you can launch meetings without any friction. The interface feels familiar but cleaner than mainstream alternatives.

Key features include: • Screen sharing for presentations and collaboration • Q&A and polling for interactive meetings • Shared notes and whiteboards for real-time collaboration • Multi-device support across computers and phones • 30-day meeting links for recurring sessions

Digital Samba targets professionals who need reliable video calls without compromising privacy. Therapists use it for patient sessions. Developers share screens for coding sessions. Language teachers conduct lessons. Lawyers review contracts with clients. The platform handles both quick calls and hours-long sessions with consistent quality.

The company has focused exclusively on video conferencing since 2003, long before mainstream platforms existed. They're bootstrapped and independent, with no external investors influencing data practices. The free version funds awareness for their B2B embedded video API business, making it genuinely free without hidden costs or data monetization.

Unlike platforms that claim European hosting but use foreign-owned infrastructure, Digital Samba maintains strict control over data location and processing. They follow GDPR compliance and SOC 1-aligned security practices while keeping the sub-processor list minimal and truly European.

VNClagoon is a comprehensive suite of integrated communication and collaboration solutions designed for modern enterprises. Built on reliable open-source technology, it provides a secure alternative to established software giants with lower upfront costs and ongoing expenses.

Key features include:

• Unified communication platform combining messaging, video conferencing, email, and project management
• End-to-end data protection with the highest security standards
• Complete visibility into all interactions on one centralized dashboard
• Flexible integrated tools for seamless workflow management
• Digital sovereignty - retain full control over your data

The platform offers purpose-built applications for secure interactions of all kinds, including VNCtalk for messaging, VNCmail for email, VNCcalendar for scheduling, and VNCproject for task management. Automated testing and continuous development ensure bulletproof software reliability.

Trusted by organizations including DFB GmbH, Federal Employment Agency, and Vodafone Group, VNClagoon serves system integrators, financial institutions, healthcare providers, and government agencies worldwide. Based in Switzerland, Germany, and India, VNC delivers enterprise-grade solutions that enable secure collaboration from anywhere, on any device.

HansaChat is a business communication platform built for European companies that want predictable costs and clear data residency. Instead of charging per user, it prices by workspace capacity, letting you add team members without increasing your monthly bill.

The platform covers standard team communication needs: channels for group discussions, direct messages for one-on-one chats, file sharing with storage limits based on your plan, and audio/video calls with screen sharing for up to 50 participants. It includes SSO integration, webhooks for automation, and workspace search across all conversations.

European hosting and data boundaries set HansaChat apart from global platforms. Your data stays on IONOS Cloud servers in Europe, with each workspace getting its own physically separate database. You can export your complete chat history at any time in Slack-compatible format, avoiding vendor lock-in.

Plans start at €39/month for 25 users with 10GB storage, scaling up to €299/month for 500 users with 1TB storage. The free tier supports 10 users with 1GB storage. You can add storage packages (10GB for €5/month, 100GB for €20/month) without changing user limits.

HansaChat works across web browsers, desktop apps (Windows, macOS, Linux), and mobile apps (iOS, Android). You can import conversation history from other chat platforms to maintain context when switching. The company publishes uptime statistics and offers 14-day trials on paid plans.

Leviia Next is a comprehensive collaborative suite built on Nextcloud open-source technology, designed specifically for organizations seeking digital sovereignty and independence from Big Tech. This French solution combines all essential workplace tools in one secure platform.

Core Features:

• File Storage & Sharing: Centralized file management with advanced permissions, seamless sync across all devices, and effortless sharing with internal and external partners
• Real-time Document Editing: Co-edit .docx, .xlsx, and .pptx files directly online with OnlyOffice integration, featuring full version history and change tracking
• Integrated Communication: Built-in chat and video conferencing through Nextcloud Talk, with screen sharing and end-to-end encryption
• Office Tools: Collaborative calendar, task management (Deck), forms, polls, and upcoming integrated email client

Sovereignty & Security:

• 100% French infrastructure with ISO27001 & HDS certification
• Data is geo-distributed across 3 distinct data centers in France
• Zero American or Chinese dependencies - built entirely on open-source code
• End-to-end encryption and advanced ransomware protection

Scalability & Flexibility:

• Supports individual users to hundreds of thousands of users
• Unlimited storage and users on Pro plans
• SSO integration and customizable deployment options
• Compatible with all major platforms (Windows, macOS, Linux, iOS, Android)

As a Nextcloud Platinum Partner, Leviia provides expert technical support and custom implementations, making it the ideal choice for organizations prioritizing data sovereignty without compromising on functionality or performance.

Fluxer is a free and open-source instant messaging and VoIP platform developed in Sweden, designed to put users first. Built for friends, groups, and communities, it offers a comprehensive communication solution without compromising on privacy or control.

Key Features:

• Full messaging suite with Markdown support, private DMs, group chats, and organized channels
• Voice and video calls with multi-device support, screen sharing, noise suppression, and echo cancellation
• Advanced moderation tools including granular roles, permissions, audit logs, and webhook support
• Powerful search functionality with message history filtering and quick switcher with keyboard shortcuts
• Extensive customization options including custom emojis, CSS themes, and compact display modes

Self-Hosting Capabilities: Run your own Fluxer instance with the fully open-source backend (AGPLv3 license). Connect using desktop clients with mobile apps coming soon, and easily switch between multiple instances.

Community-Driven Development: Fluxer is built transparently with community involvement through bug reporting, code contributions, and localization efforts. The platform offers bug bounty programs and maintains active communication channels for user feedback and feature discussions.

Proton Meet delivers truly private video conferencing with end-to-end encryption that protects your conversations from surveillance, data breaches, and AI training. Unlike mainstream platforms, your calls remain completely confidential - not even Proton can access your meetings.

Key features include:

• Free tier: Host 1-hour calls with up to 50 participants
• Premium plans: Extended meetings (24 hours) with up to 250 participants
• Cross-platform access: Join from browser, desktop, or mobile apps
• No account required: Guests can join via meeting links
• Advanced security: Uses Messaging Layer Security (MLS) protocol
• Calendar integration: Seamless scheduling with Proton Calendar
• Meeting controls: Background blur, noise reduction, participant management

Privacy advantages:

• Zero data collection - no tracking or surveillance
• European privacy laws protect against foreign access requests
• Community-funded model ensures no revenue from user data
• Open source transparency from the creators of Proton Mail

Perfect for businesses handling sensitive information, remote teams prioritizing security, and anyone seeking genuine privacy in their video communications. Proton Meet offers enterprise-grade security without compromising usability.

mosa.cloud delivers a complete digital workspace solution that prioritizes data sovereignty and organizational control. Built on open source foundations trusted by 200,000+ French government users, this European platform offers everything teams need without compromise.

Core Features:

• Collaborative Docs with real-time editing, version history, and AI assistance
• Secure Drive storage with Collabora integration for in-browser document editing
• HD Video Meetings with automatic transcripts and action items
• Team-focused Mail with shared inboxes and AI-powered organization
• Integrated Chat via Matrix server and Element client
• Grist Spreadsheets for collaborative data management

Key Advantages:

• 100% EU-hosted with data sovereignty guarantees
• Pay-per-usage pricing instead of per-seat licensing
• Open source foundation prevents vendor lock-in
• AI assistance that respects privacy - no training on your data
• Single sign-on across all applications with external collaboration support
• Enterprise security with MFA, audit trails, and NIS2 compliance

The platform integrates seamlessly with existing identity providers while enabling secure collaboration with external partners. Built by a true European service provider, mosa.cloud combines the best open source productivity tools into a fully managed workspace solution.

Livestorm is your comprehensive solution for creating and managing impactful video engagements. Whether you're hosting interactive webinars, conducting virtual meetings, or organizing large online events, this platform simplifies the entire process. It's designed in Europe with a focus on ease of use and robust functionality, allowing you to run any event in minutes.

Key benefits include:

• Ease of Use: Intuitive functionalities empower your teams to launch events quickly, with no software to install for attendees—it's browser-based.
• Brand Customization: Tailor the look and feel of your registration pages, emails, and event rooms to match your unique brand identity.
• Seamless Integrations: Connect effortlessly with your CRM, marketing automation tools, and calendar applications for efficient data flow and scheduling.
• European Data Security: Host your events with confidence, knowing your data is protected on EU servers. The platform is backed by ISO 27001 certification and ensures GDPR compliance.
• Engagement Tools: Utilize polls, Q&A with upvotes, chat, screen sharing, media sharing, virtual backgrounds, and emoji reactions to keep your audience actively involved.

Manage everything from customizable registration pages and automated email cadences to detailed analytics and on-demand replays, all within one unified platform. Livestorm supports events from 2 to 3,000 attendees and offers features like breakout rooms, AI-powered transcription, and multi-language support, making it a versatile tool for all your video communication needs.

Element offers a secure and sovereign communications platform, built by the creators of the Matrix open standard. It provides end-to-end encrypted messaging and collaboration, ensuring your business-critical communications are protected. A key benefit is data sovereignty, achieved through its open-source nature and flexible hosting options, allowing you to self-host or use a managed service like Element Matrix Services. This decentralised approach facilitates trusted real-time communication across different organisations.

Key features include:

• End-to-end encryption: Keeps your conversations private.
• Decentralised network: Built on Matrix for interoperability and control.
• Flexible hosting: Choose between self-hosting for complete data ownership or fully managed deployments.
• Open source: Offers transparency and customisation.
• Interoperability: Connect easily with others on the Matrix network.

Element empowers users to communicate and collaborate with confidence, providing the freedom to structure discussion spaces and manage data according to specific requirements. It is trusted by organisations worldwide for its robust security and commitment to user control.

OpenTalk is a German-based video conferencing platform that prioritizes data protection and digital sovereignty. Operated exclusively in German data centers, it offers full GDPR compliance while delivering sophisticated collaboration features.

Key Features:

• Interactive collaboration tools: Whiteboards, polls, voting systems, and meeting minutes
• Breakout rooms for productive workshops and team sessions
• Recording capabilities with GDPR-compliant storage
• Telephone dial-in support for reliable connectivity
• Coffee break management for longer sessions
• Multi-moderator support with advanced meeting controls

Flexible Pricing Options:

• Free Starter plan: Up to 5 participants, 30-minute meetings
• Standard plan: €7.50/month per user, up to 50 participants
• Premium plan: €12.50/month per user, unlimited meetings up to 200 participants
• On-premises deployment available for complete data sovereignty

The platform combines user-friendly design with enterprise-grade security, making it ideal for organizations that require strict data protection standards. Whether for quick team meetings or extensive workshops, OpenTalk provides the tools needed for productive virtual collaboration while ensuring your data never leaves German borders.

Professional messaging designed for modern teams that need to stay connected across organizations. Whether you're managing internal team chats, coordinating projects, or handling one-on-one conversations, this platform brings all your work communications into a single, unified space.

Key features that make collaboration effortless:

• Task management - Create and track team tasks with progress monitoring
• Pinboard functionality - Highlight important announcements to keep everyone informed
• File sharing and drawer - Capture photos, share files, and access them across all devices
• Email integration - Send and receive emails directly within the platform
• Cross-organization messaging - Communicate seamlessly with partner companies using the same platform

Universal device compatibility ensures your team stays connected whether they're desk-bound or mobile, using personal or company devices. The platform works across all makes and models, providing flexibility for diverse work environments.

Built with security in mind for companies that prioritize digital safety. Starting from €5 per month, it offers an affordable solution for teams looking to consolidate their communication tools and improve operational efficiency.