Secure Chat Platforms on the Dark Web

Ricochet Refresh is a peer-to-peer instant messaging application that uses Tor hidden services as its transport layer. Each user has a unique .onion address as their identifier (displayed as a ricochet:rs7ce36jsj24ogfw identifier). Adding a contact requires exchanging identifiers and both parties accepting the connection request. Messages route through Tor circuits with end-to-end encryption, and neither party's real IP is exposed to the other. Ricochet Refresh has no central server - there is no account to compromise, no server storing message history, and no metadata leaked to a service provider. Disadvantages: both parties must be online simultaneously for messages to be delivered (no store-and-forward), and the application requires desktop installation.

Briar is a mobile-first messaging application that uses Tor for internet-based communications with fallback to Bluetooth and direct WiFi for local messaging when internet is unavailable. This resilience makes Briar valuable for activists and journalists in network-disrupted environments. Briar's Tor-based messaging does not require both parties to be simultaneously online - messages are stored until the recipient connects. Group messaging (Forums and Groups in Briar terminology) supports community discussion. Briar has no central server - the network is fully peer-to-peer with Tor handling routing. Import contacts by exchanging QR codes or link codes in person or through secure channels. Briar is available on Android, with a desktop version in development.

OnionShare's chat mode creates temporary .onion chat rooms accessible to invited participants. The room creator shares the .onion URL with participants who access it through Tor Browser. Messages are not stored after participants leave. Rooms have no login - anyone with the URL can join. This makes OnionShare chat ideal for temporary coordination among a known group but unsuitable for ongoing private conversations requiring message persistence. The chat room closes when the creator's OnionShare instance is shut down, deleting all conversation history. For quick, ephemeral coordination without dedicated chat software, OnionShare chat provides a simple option requiring only Tor Browser for participants.

IRC (Internet Relay Chat) servers hosted as Tor hidden services provide channel-based chat accessible via Tor Browser (with web IRC clients like TheLounge) or standalone IRC clients configured with Tor SOCKS proxy. Self-hosted IRC gives the operator complete control over server configuration, logging policies, and user management. The ircd-hybrid or InspIRCd IRC daemons are lightweight and configurable for .onion deployment. Access control via channel passwords or invite-only modes provides community privacy. IRC lacks end-to-end encryption by default - messages pass through the server in plaintext (though Tor encrypts the circuit). Add OMEMO or OTR for end-to-end encryption between IRC users using compatible clients.

Matrix is a federated, decentralized chat protocol with end-to-end encryption. Running a Matrix homeserver (Synapse) as a Tor hidden service provides an encrypted, self-sovereign chat platform. Users access via Element (web or desktop) configured to use the homeserver's .onion address. Federation between .onion Matrix servers enables communication across multiple privacy-focused communities without clearnet routing. Matrix supports persistent message history, file sharing, voice, and video (with appropriate performance caveats for Tor). Configuration: install Synapse, set the server_name and public_baseurl to the .onion address, configure the Nginx reverse proxy to serve only through the hidden service. Users register accounts on your homeserver and can federate with other Matrix servers including clearnet servers if desired.