Open Source Encrypted Communication Tools using nvm
A curated collection of the best open source communication tools that use end-to-end encryption. using nvm.
Secure collaboration platform for mission-critical work
Stars
39,482Last commit
5 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
10,725Last commit
3 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 email, calendar and contacts with end-to-end encryption
Stars
8,074Last commit
16 hours agoLicense
GPL-3.0
Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.
Open Source Alternative to:
Serverless team chat over Tor, no phone number needed
Stars
2,659Last commit
3 days agoLicense
GPL-3.0
Quiet is a peer-to-peer messaging app that syncs messages directly between devices over Tor, with no central server, no phone number required, and no metadata leaks.
Open Source Alternative to:
Secure, scalable chat server for modern applications
Stars
161Last commit
26 days agoLicense
GPL-3.0
Open source chat server with end-to-end encryption, clustering support, and comprehensive messaging features for building real-time communication apps
Open Source Alternative to:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
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