Matrix.org

Website

matrix.org

Pricing URL

-

$ Details

Release Date

-

Categories

#Communication #Group Chat & Notifications #Instant Messaging #Messaging

Startup details

Country

United Kingdom

OffCode Tor Chat E2EE

Website

dev-offcode.com

Pricing URL

Official OffCode Tor Chat E2EE Pricing

$ Details

freemium $49.0 / One-off (Source-code)

Release Date

2026 July

Categories

#Chat #Group Chat & Notifications #Network Security #Security & Privacy #Encryption #Messaging #Group Messaging #Instant Messaging #Web App #Web Hosting #Self Hosting #Tor

Startup details

Country

Finland

Matrix.org features and specs

• Decentralization
  Matrix.org is built on a decentralized architecture, meaning no single entity controls the entire network. This ensures greater resilience, scalability, and prevents single points of failure.
• Interoperability
  The platform is designed to bridge communications with other networks, such as Slack, IRC, and others, facilitating seamless interaction across different services.
• End-to-End Encryption
  Matrix.org supports end-to-end encryption, ensuring that conversations are secure and private, and only accessible to the intended recipients.
• Open-Source
  Matrix.org is an open-source project, allowing anyone to inspect, modify, and contribute to the code base, which promotes transparency and continuous improvement.
• Rich Communication
  The platform supports a variety of communication forms, including text, voice, video, and file sharing, making it versatile for different use cases.

Possible disadvantages of Matrix.org

• Complex Setup
  Setting up a Matrix server can be complex and resource-intensive, requiring technical expertise which may not be accessible to all users.
• Latency
  Due to its decentralized nature, users might experience higher latency compared to centralized messaging platforms, particularly in global communications.
• Limited Network
  While Matrix is growing, its network is still smaller compared to mainstream alternatives, which might affect user adoption and community size.
• Resource Intensive
  Running a Matrix server can be resource-intensive in terms of memory and CPU usage, which might demand higher infrastructure costs.
• Learning Curve
  Users and administrators might face a steep learning curve due to the complexity of Matrix's features and configurations.

OffCode Tor Chat E2EE features and specs

• 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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