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TODO List

Self Hosted Chat Options


1. Team & Workspace Chat (Slack / Discord Alternatives)

  • Zulip
    • Description: Threaded stream-and-topic messaging designed for asynchronous communication.
    • Authentik Integration: Native Generic OpenID Connect (OIDC) support included in the free/open-source tier.
  • Mattermost
    • Description: Slack-style team chat, channels, boards, and playbooks.
    • Authentik Integration: Authentik OIDC provider (via GitLab/Generic OAuth2 compatibility) or Authentik ForwardAuth.
  • Rocket.Chat
    • Description: Channel-based team communication, live chat widgets, and omnichannel integrations.
    • Authentik Integration: Native Custom OAuth2 / OIDC provider in the Community edition.

2. Federated & Open-Standard Messaging

  • Matrix Ecosystem (Synapse or Dendrite / Conduit + Element Web or Cinny)
    • Description: Decentralized, end-to-end encrypted messaging network with bridges to Discord, Telegram, Signal, WhatsApp, and Slack.
    • Authentik Integration: Matrix Synapse supports native OpenID Connect (OIDC) for user registration and SSO.
  • XMPP (Prosody + Converse.js)
    • Description: Lightweight, extensible XML-based protocol for instant messaging and presence.
    • Authentik Integration: Authentik LDAP outpost via mod_auth_ldap, or token authentication via mod_auth_oauth2.
  • Modern Web IRC (Ergo + The Lounge)
    • Description: IRCv3 daemon paired with a persistent, modern web client and push notifications.
    • Authentik Integration: The Lounge supports reverse proxy header authentication via Authentik ForwardAuth.

3. Voice, Video & Conferencing (Chat-Adjacent)

  • Jitsi Meet
    • Description: Fully encrypted video conferencing and screen sharing.
    • Authentik Integration: Authentik OIDC / JWT authentication via Prosody backend.
  • Mumble (Murmur Server)
    • Description: Low-latency, high-quality voice communication.
    • Authentik Integration: Authentik LDAP outpost.
  • LiveKit / Element Call
    • Description: WebRTC infrastructure and client for group audio/video calls, integrating directly into Matrix rooms.
    • Authentik Integration: Inherits Synapse OIDC authentication.

4. AI Chat & LLM Interfaces (Chat-Adjacent)

  • Open WebUI
    • Description: Feature-rich web interface for local LLMs, Ollama, API endpoints, RAG, and document chat.
    • Authentik Integration: Native OpenID Connect (OIDC) support with automatic user provisioning and role syncing.
  • LibreChat
    • Description: Multi-provider AI chat interface supporting OpenAI, Anthropic, Gemini, local models, and plugin tools.
    • Authentik Integration: Native OpenID Connect (OIDC) / OAuth2 support.

5. Push Notifications, Webhooks & Alerting Gateways

  • Ntfy
    • Description: HTTP-based pub-sub push notification service to send alerts to desktop/mobile devices.
    • Authentik Integration: Authentik ForwardAuth or upstream header auth.
  • Gotify
    • Description: Simple server for sending and receiving push notifications via WebSockets.
    • Authentik Integration: Authentik ForwardAuth.
  • Apprise API
    • Description: Gateway router to relay notifications to 80+ chat endpoints (Matrix, Discord, Telegram, Slack, etc.).
    • Authentik Integration: Authentik ForwardAuth.

6. Asynchronous Community / Forum Platforms

  • Discourse
    • Description: Modern discussion platform, community forums, and long-form topic threads.
    • Authentik Integration: Native OpenID Connect (OIDC) plugin (discourse-openid-connect).
  • NodeBB
    • Description: Real-time, socket-driven forum software with built-in instant messaging and notifications.
    • Authentik Integration: nodebb-plugin-oauth2-oidc with Authentik.

Summary Comparison Table

Service OIDC / SSO Support Mobile Apps (iOS & Android) Site-Wide Custom Emojis Server-Side Custom CSS Global Branding / Theme Config
Zulip Yes (Native OIDC) Yes (Official iOS & Android) Yes (Built-in) Yes (Admin UI) High (Logos, default themes)
Mattermost Yes (OIDC / OAuth2 / ForwardAuth) Yes (Official iOS & Android) Yes (Built-in) Limited (Plugins) Medium (Colors, brand images)
Rocket.Chat Yes (Native OAuth2 / OIDC) Yes (Official iOS & Android) Yes (Built-in) Yes (Admin UI) High (Live CSS, assets, colors)
Matrix / Element Yes (Native OIDC via Synapse) Yes (Official Element iOS & Android, FluffyChat, etc.) Yes (MSC2545 packs) Yes (config.json) Medium (JSON palette, branding)
XMPP (Prosody) Indirect (LDAP Outpost / mod_auth_oauth2) Yes (Monomyth, Conversations [Android], Siskin/Monal [iOS]) Client-dependent No N/A (Client-dependent)
The Lounge (IRC) Indirect (ForwardAuth) PWA (Progressive Web App on iOS & Android) Limited Yes (CSS files) Medium (Theme packages)
Jitsi Meet Yes (OIDC / JWT via Prosody) Yes (Official iOS & Android) No Yes (CSS / Config) High (Watermarks, templates)
Mumble Indirect (LDAP Outpost) Yes (Plumble [Android], Mumble [iOS]) No No Low
Open WebUI Yes (Native OIDC) PWA (Official mobile web/PWA) Model Avatars / Unicode Yes (Admin UI) High (Logos, banners, CSS)
LibreChat Yes (Native OIDC / OAuth2) PWA (Mobile web / PWA) Unicode Config file Medium (librechat.yaml)
Ntfy Indirect (ForwardAuth / Header Auth) Yes (Official iOS & Android) No No Low
Gotify Indirect (ForwardAuth) Yes (Official Android, third-party iOS) No No Low
Discourse Yes (Native OIDC plugin) Yes (Official Discourse Hub app) Yes (Built-in) Yes (SCSS/Themes) Very High (Full theme engine)
NodeBB Yes (nodebb-plugin-oauth2-oidc) PWA / Third-party apps Yes (Plugin/ACP) Yes (ACP) High (Skins, custom CSS)

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