Communication

An open-source Matrix client and collaboration platform supporting decentralized or self-hosted messaging with end-to-end encryption.

• Hybrid
• Open source
• Self-hostable
• Partial offline
• Web · Desktop · Mobile

An open-source web and mobile video-conferencing platform that can be used through public instances or deployed on a private server.

• Hybrid
• Open source
• Self-hostable
• Optional account
• Web · Mobile · Self-hosted

An encrypted email service using end-to-end encryption for supported private-email flows and zero-access encryption for stored mailbox content.

• End-to-end encrypted cloud
• Partial offline
• Web · Desktop · Mobile

Private messaging and calling with end-to-end encryption enabled for every Signal conversation.

• End-to-end encrypted cloud
• Open source
• Partial offline
• End-to-end encryption
• Desktop · Mobile

An encrypted email, calendar and contacts service with open-source clients and privacy-focused defaults.

• End-to-end encrypted cloud
• Partial offline
• Web · Desktop · Mobile