The most radical approach to private messaging — no user identifiers of any kind, not even random ones — but its novelty and complexity limit mainstream adoption.
This toolkit is for informational purposes. Security needs vary by situation. No tool guarantees complete privacy or anonymity.
Double ratchet encryption with no user identifiers; each conversation uses separate, unlinked encryption channels.
No user IDs, no phone numbers, no accounts — the only messenger where even the system cannot identify participants.
Fully open source with a Trail of Bits security audit; protocol specification is publicly documented.
UK-based company operating in a Five Eyes jurisdiction, though the decentralized architecture limits data exposure.
Launched in 2022 and still very new; limited real-world stress testing under adversarial conditions or government pressure.
Requires QR code scanning or link sharing to connect; conceptually complex for non-technical users unfamiliar with the model.
Available on iOS, Android, and Linux with Mac and Windows desktop apps; desktop experience is less polished.
Free to use with no payment required; self-hosting relay servers is supported for those wanting full infrastructure control.
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