Private Digital Workplace
Carbonio is the all-in-one collaboration platform that keeps your data private, your infrastructure under control, and your user experience seamless.
Email, chat, video, files, and calendars - fully secure, fully sovereign, and fully yours.
Total Control Over Your Infrastructure
Deploy Carbonio wherever you want on-prem, in your cloud, or with a certified provider. You decide how your data is stored, accessed, and protected.
Distributed Only via Certified Partners
Every deployment is handled by trained and certified partners, ensuring trusted relationships, recurring revenue, and expert support.
Open-Core, Fully Transparent
Built on open standards and an open-core model, Carbonio blends the trust of open source with enterprise features-ensuring extensibility, interoperability, and freedom from vendor lock-in.
One Tab, All Your Work
Email, calendar, chat, files, video, document editing - everything your teams need in a single, seamless browser experience.
All the Tools Teams Need, Fully Integrated
Carbonio simplifies your digital workplace and boosts collaboration across teams, departments, and organizations.
You can access your personal workplace from your Windows, Linux, and macOS. Carry it with you on your iOS and Android devices. For enterprise needs, Carbonio also integrates with bespoke clients that support offline access, ensuring you stay productive wherever you are.
Comprehensive Email
Unified inbox, shared mailboxes, smart filters, and lightning-fast search.
Smart Calendar
Shared calendars, free/busy lookup, room & resource booking, and intuitive scheduling assistant.
Real-Time Chat & Video Meetings
One-click switch from message to call with file-sharing and recording built in.
Mobile Apps
Seamless experience on iOS, Android with native apps.
File Management
Secure storage, external sharing links, and granular sharing permissions.
Collaborative Document Editing
Co-author docs, spreadsheets, and slides right inside Carbonio.
Advanced Admin Console
Multi-tenant support, role-based access control, and built-in backup and restore solution.
Whitelabeled Platform
Seamless branding with your logo, colors, domain, and custom login pages to deliver a consistent user experience under your identity.
Advanced Search
Instantly find emails, files, calendar events, and contacts across your entire workspace with advanced filters.
Designed to Simplify Admin Tasks
A powerful control panel for system administrators, designed to ensure scalability, performance, and maximum control.
- Full-fledged Admin Console
- Object Storage Support
- Real-time Backup and Restore
- Exchange ActiveSync
- Hierarchical Storage Management
- 2-Factor Authentication
- Secure SAML Login
Enterprise-Grade Administration
Enterprise-grade controls for resilient multi-tenant operations, effortless delegation, and integrated security compliance.
- Multi-Tenant Environment
- Extended Enterprise Administration
- Fully Redundant
- Comprehensive Security Features
- Legal Hold
- Role-Based Access Control
- Audit Logs
- White Labeling
State of the Art Architecture
Resilient, scalable, and automated design ensuring performance, flexibility, and security.
- Popular open source & open core component based architecture
- Centralized & policy based communication between components
- Dynamic Orchestration of components & services with consul
- Intelligent data management between local & S3-compatible storage
- Complete support for popular protocols (i.e. CalDAV, ActiveSync)
- LibreOffice powered office collaboration
- WebRTC server for video conferencing & meeting recording
Built for the World's Most Demanding Environments
Trusted by organizations where security, control, and compliance are non-negotiable.
Public Sector - Financial Services - Healthcare - Education - Critical Infrastructure - Regulated Enterprises
"With Carbonio, we finally achieved digital sovereignty without compromising user experience."
Why Trust Zextras?
Proven Expertise
20+ years of experience in secure collaboration and infrastructure control.
Privacy & Sovereignty First
We don't just protect your data, we help you fully control it.
Trusted Delivery
Solutions are implemented only through certified and trained partners.
Transparent by Design
From open-core technology to our go-to-market: transparency is not a feature, it's our mindset.
Independent. European. Strategic.
We're not funded by venture capital and are not tied to hyperscalers. Our roadmap is our own and aligned with your sovereignty.