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Open Source Encrypted Communication Tools using Cargo

A curated collection of the best open source communication tools that use end-to-end encryption. using Cargo.

Fluxer

Open source messaging with privacy and community focus

  • Stars

    10,648

  • Last commit

    17 hours ago

  • License

    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:

Discord

Tuta

Secure email, calendar and contacts with end-to-end encryption

  • Stars

    8,039

  • Last commit

    13 hours ago

  • License

    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:

Gmail

Stoat

Group chat for friends and communities, without the baggage

  • Stars

    3,423

  • Last commit

    13 hours ago

  • License

    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:

Discord
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