> ## Documentation Index > Fetch the complete documentation index at: https://mintlify.com/awesome-selfhosted/awesome-selfhosted/llms.txt > Use this file to discover all available pages before exploring further. # Custom Communication Systems > Self-hosted communication software using custom protocols for remote access, file exchange, and real-time messaging [Communication software](https://en.wikipedia.org/wiki/Communication_software) used to provide remote access to systems and exchange files and messages in text, audio and/or video formats between different computers or users, using their own custom protocols. ## Real-Time Communication Platforms ### AnyCable Realtime server for reliable two-way communication over WebSockets, Server-sent events, etc. * **Demo:** [demo.anycable.io](https://demo.anycable.io) * **Source Code:** [GitHub](https://github.com/anycable/anycable) * **License:** MIT * **Tech Stack:** Go, Docker ### Centrifugo Language-agnostic real-time messaging (Websocket or SockJS) server. * **Demo:** [GitHub demos](https://github.com/centrifugal/centrifugo#demo) * **Source Code:** [GitHub](https://github.com/centrifugal/centrifugo) * **License:** MIT * **Tech Stack:** Go, Docker, K8S ### WBO Web Whiteboard to collaborate in real-time on schemas, drawings, and notes. * **Demo:** [wbo.ophir.dev](https://wbo.ophir.dev/) * **Source Code:** [GitHub](https://github.com/lovasoa/whitebophir) * **License:** AGPL-3.0 * **Tech Stack:** Nodejs, Docker ## Matrix Ecosystem ### Element Fully-featured Matrix client for Web, iOS & Android. * **Source Code:** [GitHub](https://github.com/element-hq/element-web) * **License:** Apache-2.0 * **Tech Stack:** Nodejs ### Synapse Server for [Matrix](https://matrix.org/), an open standard for decentralized persistent communication. * **Source Code:** [GitHub](https://github.com/element-hq/synapse) * **License:** Apache-2.0 * **Tech Stack:** Python, deb ### Conduit A simple, fast, and reliable chat server powered by Matrix. * **Source Code:** [GitLab](https://gitlab.com/famedly/conduit) * **License:** Apache-2.0 * **Tech Stack:** Rust ## Notification Services ### Apprise Send notifications to almost all of the most popular notification services available to us today such as: Telegram, Discord, Slack, Amazon SNS, Gotify, etc. * **Source Code:** [GitHub](https://github.com/caronc/apprise) * **License:** MIT * **Tech Stack:** Python, Docker, deb ### Gotify Notification server with Android and CLI clients (alternative to PushBullet). * **Source Code:** [GitHub - Server](https://github.com/gotify/server) | [Clients](https://github.com/gotify/android) * **License:** MIT * **Tech Stack:** Go, Docker ### ntfy Push notifications to phone or desktop using HTTP PUT/POST, with Android app, CLI and web app, similar to Pushover and Gotify. * **Demo:** [ntfy.sh/app](https://ntfy.sh/app) * **Source Code:** [GitHub](https://github.com/binwiederhier/ntfy) | [Clients](https://github.com/binwiederhier/ntfy-android) * **License:** Apache-2.0 / GPL-2.0 * **Tech Stack:** Go, Docker, K8S ### Notifo Multichannel notification server with support for Email, Mobile Push, Web Push, SMS, messaging and a javascript plugin. * **Source Code:** [GitHub](https://github.com/notifo-io/notifo) * **License:** MIT * **Tech Stack:** C# ### Novu Notification infrastructure for developers. * **Source Code:** [GitHub](https://github.com/novuhq/novu/) * **License:** MIT * **Tech Stack:** Docker, Nodejs ### PushBits Notification server for relaying push notifications via Matrix, similar to PushBullet and Gotify. * **Source Code:** [GitHub](https://github.com/pushbits/server) * **License:** ISC * **Tech Stack:** Go ## Team Collaboration ### Rocket.Chat Communications platform that puts data protection first (alternative to Gitter.im and Slack). * **Source Code:** [GitHub](https://github.com/RocketChat/Rocket.Chat) * **License:** MIT * **Tech Stack:** Nodejs, Docker, K8S ### Zulip Powerful, open source group chat application. * **Source Code:** [GitHub](https://github.com/zulip/zulip) * **License:** Apache-2.0 * **Tech Stack:** Python ### Tailchat Next generation noIM application in your own workspace, not only another Slack/Discord/rocket.chat. * **Demo:** [nightly.paw.msgbyte.com](https://nightly.paw.msgbyte.com/) * **Source Code:** [GitHub](https://github.com/msgbyte/tailchat) * **License:** Apache-2.0 * **Tech Stack:** Docker, K8S, Nodejs ### SAMA Next-Gen self-hosted chat server and clients. * **Demo:** [app.samacloud.io/demo](https://app.samacloud.io/demo) * **Source Code:** [GitHub - Server](https://github.com/SAMA-Communications/sama-server) | [Clients](https://github.com/SAMA-Communications/sama-client) * **License:** GPL-3.0 * **Tech Stack:** Nodejs, Docker ### Stoat User-first chat platform built with modern web technologies. * **Source Code:** [GitHub](https://github.com/stoatchat/self-hosted) * **License:** AGPL-3.0 / MIT * **Tech Stack:** Rust ## Peer-to-Peer & Privacy-Focused ### Chitchatter Peer-to-peer chat app that is serverless, decentralized, and ephemeral. * **Source Code:** [GitHub](https://github.com/jeremyckahn/chitchatter) * **License:** GPL-2.0 * **Tech Stack:** Nodejs ### Databag Federated, end-to-end encrypted messaging service for the web, iOS, and Android, supporting text, photos, video, and WebRTC video and audio calls. * **Demo:** [databag.coredb.org/#/create](https://databag.coredb.org/#/create) * **Source Code:** [GitHub](https://github.com/balzack/databag) * **License:** Apache-2.0 * **Tech Stack:** Docker ### SimpleX Chat The most private and secure chat and applications platform - now with double ratchet E2E encryption. * **Source Code:** [GitHub](https://github.com/simplex-chat/simplex-chat) * **License:** AGPL-3.0 * **Tech Stack:** Haskell ### Jami Universal communication platform which preserves the user's privacy and freedoms. * **Source Code:** [Git](https://git.jami.net/savoirfairelinux?sort=latest_activity_desc\&filter=jami) * **License:** GPL-3.0 * **Tech Stack:** C++ ### Tox Distributed, secure messenger with audio and video chat capabilities. * **Source Code:** [GitHub](https://github.com/TokTok/c-toxcore) * **License:** GPL-3.0 * **Tech Stack:** C ## Decentralized Networks ### GNUnet Software framework for decentralized, peer-to-peer networking. * **Source Code:** [gnunet.org/git](https://gnunet.org/git/) * **License:** GPL-3.0 * **Tech Stack:** C ### Hyphanet Anonymously share files, browse and publish *freesites* (web sites accessible only through Hyphanet) and chat on forums. * **Source Code:** [GitHub](https://github.com/hyphanet/fred) * **License:** GPL-2.0 * **Tech Stack:** Java ### RetroShare Secured and decentralized communication system. Offers decentralized chat, forums, messaging, file transfer. * **Source Code:** [GitHub](https://github.com/RetroShare/RetroShare) * **License:** GPL-2.0 * **Tech Stack:** C++ ## Voice Chat ### Mumble Low-latency, high quality voice/text chat software. * **Source Code:** [GitHub](https://github.com/mumble-voip/mumble) | [Clients](https://wiki.mumble.info/wiki/3rd_Party_Applications) * **License:** BSD-3-Clause * **Tech Stack:** C++, deb ## Specialized Communication Tools ### GlobaLeaks Whistleblowing software enabling anyone to easily set up and maintain a secure reporting platform. * **Demo:** [demo.globaleaks.org](https://demo.globaleaks.org) * **Source Code:** [GitHub](https://github.com/globaleaks/globaleaks-whistleblowing-software) * **License:** AGPL-3.0 * **Tech Stack:** Python, deb, Docker ### Live Helper Chat Live Support chat for your website. * **Source Code:** [GitHub](https://github.com/LiveHelperChat/livehelperchat) * **License:** Apache-2.0 * **Tech Stack:** PHP ### Tiledesk All-in-one customer engagement platform from lead-gen to post-sales, from WhatsApp to your website. With omni-channel live agents and AI-powered chatbots (alternative to Intercom, Zendesk, Tawk.to and Tidio). * **Source Code:** [GitHub](https://github.com/Tiledesk/tiledesk) * **License:** MIT * **Tech Stack:** Docker, K8S ### Tinode Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots. * **Demo:** [sandbox.tinode.co](https://sandbox.tinode.co/) * **Source Code:** [GitHub - Server](https://github.com/tinode/chat) | [Clients](https://github.com/tinode/webapp) * **License:** GPL-3.0 * **Tech Stack:** Go ### Typebot Conversational app builder (alternative to Typeform and Landbot). * **Source Code:** [GitHub](https://github.com/baptisteArno/typebot.io) * **License:** AGPL-3.0 * **Tech Stack:** Docker ### Screego Simple tool to quickly share your screen to one or multiple people via web browser. * **Demo:** [app.screego.net](https://app.screego.net/) * **Source Code:** [GitHub](https://github.com/screego/server) * **License:** GPL-3.0 * **Tech Stack:** Docker, Go ### Spectrum 2 Spectrum 2 is an open source instant messaging transport. It allows users to chat together even when they are using different IM networks. * **Source Code:** [GitHub](https://github.com/SpectrumIM/spectrum2) * **License:** GPL-3.0 * **Tech Stack:** C++ ## Secret Sharing ### One Time Secret Share sensitive information securely with self-destructing links that are only viewable once. * **Demo:** [onetimesecret.com](https://onetimesecret.com) * **Source Code:** [GitHub](https://github.com/onetimesecret/onetimesecret) * **License:** MIT * **Tech Stack:** Docker, Ruby, Nodejs ### OTS One-Time-Secret sharing platform with a symmetric 256bit AES encryption in the browser. * **Source Code:** [GitHub](https://github.com/Luzifer/ots) * **License:** Apache-2.0 * **Tech Stack:** Go ### Shhh Keep secrets out of emails or chat logs, share them using secure links with passphrase and expiration dates. * **Source Code:** [GitHub](https://github.com/smallwat3r/shhh) * **License:** MIT * **Tech Stack:** Python