SimpleX chat VS OffCode Tor Chat E2EE

• End-to-End Encryption
  SimpleX Chat offers end-to-end encryption, ensuring that messages are only readable by the sender and the recipient, providing a high level of privacy and security.
• Decentralized Messaging
  The platform operates on a decentralized network, meaning there is no central server that could potentially be a single point of failure or monitoring.
• Open Source
  SimpleX Chat is open-source, allowing users to inspect the code for any vulnerabilities or privacy issues and enabling community-driven improvements.
• No User Metadata
  The service does not collect or store user metadata, enhancing user privacy and preventing tracking of communication patterns.

Possible disadvantages

• Limited User Base
  As a newer and less mainstream messaging app, SimpleX Chat may have a smaller user base, which could limit its adoption among friends and contacts.
• Potential Usability Issues
  As with many privacy-focused platforms, users may encounter a more complex setup or interface compared to mainstream messaging apps.
• Feature Limitations
  It might lack some advanced features offered by larger, established messaging platforms, such as extensive media sharing options or integrations with other services.
• Network Reliability
  Being decentralized, the performance and reliability of message delivery might vary depending on the network conditions and the number of participating nodes.

• Ciphertext storage
  SQLCipher database under LocalAppData (Windows) or Docker volume. DPAPI / env key. Parameterized queries. Plaintext is never written to disk.
• Close room to new members
  blocks all joins (including invites); members stay
• Slow mode
  Send cooldown 1 min … 4 h (applies to everyone, including creator)
• Delete this room
  Same wipe path as Server Manager room delete
• Creator recovery code
  Binds rooms you create; My rooms lists hidden; Copy / Restore
• Rooms, invites & TTL
  Open, password-protected, and/or hidden rooms with invite links and required per-message lifetime.
• Server manager
  Start ChatServer first (Production, waits for /api/health), then enable Tor Copy and share the published .onion URL Optional Full Vanguards checkbox (Python + Stem) for long-lived HS hardening Locks CORS to your onion: TORCHAT_ALLOWED_ONION on start + live POST /api/admin/cors-onion (no ChatServer restart) Live room list (room id, locked flag, online count only, no message content) Remove a selected room in realtime: connected users are forced back to the lobby; ciphertext for that room is deleted with secure_delete + VACUUM Remove SQL data: securely overwrites (then deletes) the SQLCipher DB, WAL/SHM, and db.key.dpapi; optional checkbox also wipes Tor Hidden Service keys (.onion identity) Generate new address: securely wipes HS keys and publishes a new .onion (chat DB unchanged) Point at your ChatServer project path and load/save host config as needed
• Full Vanguards Guard-Discovery Protection
  A standard Tor Hidden Service chooses its entry (guard) nodes randomly on every circuit build. Over time a network-level adversary can watch which relays the server connects to and gradually narrow down the real server IP. This is called a guard-discovery attack and is especially dangerous for long-lived hidden services.
• Encryption
  WebCrypto AES-256-GCM; PBKDF2-v2 domains at 600 000 iterations (torchat-join-v2 / torchat-e2ee-v2 locked = server-blind; torchat-open-v2 open = public key material). Envelopes: pbkdf2-v2 / ecdh-hybrid-v1
• XSS hardening
  No user innerHTML; messages and room ids via textContent / createElement
• ECDH + safety number
  1:1 hybrid ECDH; safety number from sorted SPKI pubs (3×5 decimal); Mark verified / TOFU change warning (sessionStorage)

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OffCode Tor Chat Showcase

• 10 Best Secure Messaging Apps to Keep Your Conversation Private
  beebom.com · Dec 2023

  One of the recent secure messaging apps that has entered the scene is SimpleX Chat. It claims to be the first messaging app that has no user IDs. This private messaging app uses its proprietary platform called...

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• SignalApp UI Home Screen but with Flutter

  Anyway, copying and reproducing is a great way to learn. It also train the mind to decompose every applications in small pieces. The same could have been done for Briar, SimpleX or Telegram applications, all of them are open-source and... - Source: dev.to / 3 months ago

• Discord Alternatives, Ranked

  Https://simplex.chat/ It already has quite big communities https://simplex.chat/directory/. - Source: Hacker News / 7 months ago

• Signal knows who you're talking to

  I like the way SimpleXChat works. Good luck getting anyone to switch to it though. https://simplex.chat/. - Source: Hacker News / 10 months ago

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Tracking OffCode Tor Chat E2EE since Jul 2026.