Your secure team calendar
Manage schedules, share calendars, and book meetings securely with Proton Calendar.
End-to-end encrypted
Video conferencing integration
Easy migration from any calendar
Be more productive with a simple and secure team calendar
Schedule effortlessly
Share your availability, check your colleagues’ schedules at a glance, and manage your contacts directly from your calendar.
Integrate meeting links
Streamline your workflows by adding Zoom links to events on Proton Calendar. And easily join meetings in Zoom, Teams, Slack, and more.
Manage events from anywhere
Download our mobile app (for iOS or Android) or desktop app (for MacOS, Windows, and Linux) for the full Proton Mail and Calendar experience.
View your calendar your way
View your schedule by day, week, or month. Choose from multiple themes, including dark or high-contrast mode.
Never miss a meeting
Add calendar events directly from Proton Mail, set up recurring events, customize notifications, and add reminders and email alerts, so you stay on top of your schedule.
Keep all event details safe
Protect your calendar data, including participants, locations, and contact info. Event invitations are end-to-end encrypted to prevent data breaches.
How Proton Calendar protects your organization
Your company calendar contains vital data about your business. Don’t let it fall into the wrong hands.
Shielded by Swiss privacy
Proton is incorporated and headquartered in Switzerland, giving you the benefit of strong privacy laws and political neutrality.
Your data can’t be turned over to foreign governments or subject to mass surveillance.
Secured by end-to-end encryption
All your Proton Calendar events are automatically secured with end-to-end encryption.
Events received from people who use other calendars are secured with zero-knowledge encryption.
Backed by advanced protocols
Proton uses high-performance elliptic curve cryptography (ECC Curve25519) to secure your data.
This happens automatically in the background without requiring any action from you.
Strengthened by open source
The Proton Calendar web app is open source and independently audited by third-party experts.
You can view the audit reports, inspect the code yourself, or even contribute improvements.
Switching to Proton is easy
Migrate your existing team calendars, emails, and contacts securely to Proton with one click from any provider.
With Proton Easy Switch, you can select what you’d like to import — leave behind the clutter and only bring the important things. Your calendar, emails, and contacts will be encrypted as they arrive at Proton.
Full business protection, one encrypted suite
Enjoy secure privacy for your whole organization with Proton’s encrypted suite of business apps
Proton Mail
Protect your communications with easy-to-use encrypted email.
Proton VPN
Secure your network and easily control access with a dedicated VPN.
Proton Pass
Simplify team access to work logins with an encrypted password manager.
Start protecting your business data
Proton is incorporated and headquartered in Switzerland, giving you the benefit of strong privacy laws and political neutrality.
Your data can’t be turned over to foreign governments or subject to mass surveillance.
Easy setup and reliable service
Streamline your day-to-day with a built-in calendar that’s synced across the organization for optimal efficiency and collaboration.
Easy migration with live support
Use Proton’s Easy Switch tool to migrate your data from Google Workspace, Microsoft 365, or other providers. Our dedicated Support team is available to help you with the process step-by-step, at no extra cost.
No training or upskilling required
Proton’s user-friendly interface means there’s no learning curve for your team.
Seamless team management
Simply manage your team’s access, permissions and storage in Proton’s admin panel to keep your workflow efficient.
Trusted by users of thousands of global organizations to stay secure
30k+
Finance and technology professionals
10k+
Startups
15K+
Non-profit organizations
20+
EU government organizations out of over 80
United people global
President
We use the best encrypted email service provider in the world. It is inspiring that more and more people are using Proton Mail and essentially saying, I am taking privacy more seriously.
Avocats sans frontières
Administration & IT Manager
The implementation of Proton Mail has allowed us to strengthen our security on our platforms and improve our cyber security knowledge.
With Proton, we've been able to centralise our digital tools which has helped us reduce costs by 70%.
