Messaging
Cwtch
Cwtch is the no-server, Tor-onion-service-only messenger from Open Privacy.
- Website
- cwtch.im
- KYC
- no KYC — Decentralized messaging with no central server. Identity is a self-generated key; transport is Tor v3 onion services. No phone, no email, no signup.
- Status
- active
- Fiat on-ramp
- no
- Payment
- donation
- Jurisdiction
- independent open source (Open Privacy Research Society, Canada)
- Founded
- 2018
- Open source
- yes
- Custodial
- no
- Last verified
- Sources
- 2
Overview
What Cwtch is#
A peer-to-peer Tor-based messenger with no central server, no accounts, and cryptographic group membership.
Threat-model fit#
When “no central party” is the binding requirement and Tor latency is acceptable.
Strengths
- No accounts, no central server, no metadata aggregation point.
- Tor-onion-service transport by default.
- Group chats with cryptographic membership rather than trusted server.
Caveats
- Smaller user base than Briar or SimpleX; finding contacts already on Cwtch is the friction.
- Tor-only transport means latency is what Tor latency is.
- Facts need re-verification by operator (last seeded 2026-01).
Verdict
Cwtch is the no-server, Tor-onion-service-only messenger from Open Privacy. The architecture is the most metadata-minimizing in the category — no central party sees the social graph because there is no central party. The cost is the small user base and the Tor latency. For users in environments where any central server is part of the threat, Cwtch is the reference design.
FAQ
- Does Cwtch require KYC?
- As of Jan 1, 2026, Cwtch does not require KYC for normal use. Decentralized messaging with no central server. Identity is a self-generated key; transport is Tor v3 onion services. No phone, no email, no signup.
- What payment methods does Cwtch accept?
- Cwtch accepts: donation.
- Where is Cwtch based?
- Operating jurisdiction listed as independent open source (Open Privacy Research Society, Canada). This is best-known information; corporate structure can be opaque.
Sources
- Cwtch documentation · accessed
- Open Privacy Research Society · accessed
Mentioned in
Alternatives to Cwtch
- Briar none kyc · Germany
- conversations.im optional kyc · Germany
- Delta Chat none kyc · independent
- Element (Matrix) optional kyc · United
- JMP.chat none kyc · Canada
- SecureDrop none kyc · Freedom
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