Proton Meet: E2EE video calls with MLS

Proton Meet: Video Conferencing with MLS Protocol and End-to-End Encryption

Proton has launched Proton Meet, a video calling service built on end-to-end encryption using the Messaging Layer Security (MLS) protocol. This ensures that audio, video, screen sharing, and chat remain private exclusively for participants—the platform has no access to the content. The approach prevents the use of data for analytics or ML models.

MLS is an open protocol for group communication that provides cryptographic protection while supporting modern collaboration tools. The service targets developers and professionals who prioritize privacy without sacrificing functionality.

Easy Access Without Accounts

To start a meeting, simply generate a link—no registration required. Guests can join instantly, even without prior experience using Proton. This makes it easy to integrate into team workflows regardless of familiarity with the platform.

Supported features:

• High-resolution video and audio;
• Screen sharing;
• Real-time chat;
• Scheduling via Proton Calendar or import to Google/Outlook.

Pricing and Limits

The free version is designed for occasional use:

• Up to 50 participants;
• Duration up to 60 minutes.

For advanced scenarios, Meet Professional is available: from $7.99/user/month. The plan expands limits and adds enterprise features while maintaining E2EE.

| Version | Participants | Duration | Price |

|--------------|--------------|-------------|---------|

| Free | 50 | 60 min | $0 |

| Pro | Unlimited | Unlimited | $7.99+ |

Integration into the Proton Ecosystem

Proton Meet complements Sheets—an encrypted alternative to Excel/Google Sheets. Sheets supports collaborative editing, formulas, pivot tables, and charts with E2EE by default. Data access is restricted to the owner and co-authors, with no provider interference.

The ecosystem focuses on zero-knowledge architecture: keys are generated and stored on the client side. Developers can integrate these services into pipelines where privacy is critical, such as discussing code or architecture without leak risks.

Key Points

• MLS protocol: open standard for group E2EE, resistant to participant compromise.
• Zero-access: Proton doesn't decode traffic, eliminating internal threats.
• Guest access: account-free link for quick onboarding.
• Free tier: ideal for mid/senior teams with infrequent calls.
• Ecosystem: synergy with Sheets for secure data workflows.

The service is ideal for IT professionals whose discussions need protection from MITM attacks, surveillance, and data harvesting. MLS implementation ensures forward secrecy and post-compromise security in group scenarios.

— Editorial Team