19 open-source Messaging vendors
Open-source software for Messaging that you can self-host, with auditable source code — regardless of the developer's headquarters.
- vendors scored
- 19
- European
- 11
- last checked
- 11 October 2026
Vendors, scored
Score per vendor: 0 = high exposure, 100 = sovereign
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- Sovereignty score 94 out of 100BertyFrance · Self-hosted / open sourceOpen-source peer-to-peer messenger without central servers, developed by Berty Technologies, a French non-profit organisation in Paris. Still in development.
- Sovereignty score 94 out of 100Conversations (XMPP)Germany · Self-hosted / open sourceXMPP chat client for Android with OMEMO encryption
- Sovereignty score 94 out of 100Delta ChatGermany · Self-hosted / open sourceGerman open-source messenger via existing email infrastructure
- Sovereignty score 94 out of 100DinoGermany · Self-hosted / open sourceModern XMPP desktop client with OMEMO encryption
- Sovereignty score 94 out of 100GajimCzechia · Self-hosted / open sourceCzech full-featured XMPP/Jabber client (Giacom Development S.R.O.) with OMEMO/OpenPGP/OTR encryption.
- Sovereignty score 94 out of 100OlvidFrance · EU sovereignFrench ANSSI-certified encrypted messenger
- Sovereignty score 94 out of 100QuicksyGermany · Self-hosted / open sourceXMPP messaging app with phone number linking for easy contact
- Sovereignty score 94 out of 100SessionSwitzerland · EU sovereignEnd-to-end encrypted messenger based on decentralised Oxen network
- Sovereignty score 94 out of 100StatusSwitzerland · Self-hosted / open sourceOpen-source decentralised messenger and wallet from Status Research & Development GmbH (Zug, Switzerland), running on a peer-to-peer network with community chats.
- Sovereignty score 94 out of 100ToxGermany · Self-hosted / open sourceDecentralised peer-to-peer messaging protocol with end-to-end encryption
- Sovereignty score 94 out of 100WireGermany · EU sovereignSwiss messaging platform with end-to-end encryption for business use
- Sovereignty score 79 out of 100BriarUnited Kingdom · Self-hosted / open sourceBritish open-source peer-to-peer encrypted messenger via Tor
- Sovereignty score 79 out of 100CwtchCanada · Self-hosted / open sourceDecentralised messaging platform with metadata protection via Tor
- Sovereignty score 79 out of 100Element (Matrix)United Kingdom · Non-EU vendorBritish secure messaging platform on the open Matrix protocol
- Sovereignty score 79 out of 100JamiCanada · Self-hosted / open sourceCanadian peer-to-peer communication platform without a central server
- Sovereignty score 79 out of 100SimpleX ChatUnited Kingdom · Non-EU vendorDecentralised messenger without user IDs for maximum privacy
- Sovereignty score 79 out of 100SnikketUnited Kingdom · Non-EU vendorSimple XMPP messaging solution for families and small groups
- Sovereignty score 79 out of 100StoatUnited Kingdom · Self-hosted / open sourceUK open-source Discord alternative (Revolt Platforms Ltd, London) with servers, channels and voice, GDPR-compliant.
- Sovereignty score 49 out of 100SignalUnited States · Non-EU vendorUS open-source encrypted messaging app with strong privacy focus
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