Self-hosted Encrypted Communication Tools
A curated collection of the best self-hosted communication tools that use end-to-end encryption.
Secure collaboration platform for mission-critical work
Stars
38,892Last commit
2 hours agoLicense
Unknown
Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.
Open Source Alternative to:
Open source messaging with privacy and community focus
Stars
10,130Last commit
8 hours agoLicense
AGPL-3.0
Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.
Open Source Alternative to:
Secure, decentralized messaging for teams and individuals
Stars
13,407Last commit
12 hours agoLicense
AGPL-3.0
Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.
Open Source Alternative to:
Group chat for friends and communities, without the baggage
Stars
3,251Last commit
2 hours agoLicense
Unknown
Self-hostable group chat with servers, channels, voice, and moderation tools. No ads, no data mining, built under EU privacy law.
Open Source Alternative to:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Sent