Self-Hosted Custom Communications: 68 Open-Source Apps
Best for your setup
Homelab Novice
Wants it running tonight, with one command.
Mumble8.4k
Mumble is an open source, low-latency, high-quality voice chat application with separate client and server components.
- Live demo
- Documented
See allDefault rank #9
81/100 fitHow well this app matches homelab novices, 0 to 100
Homelab Expert
Runs a stack already and wants it to plug in.
Centrifugo10.9k
Centrifugo is an open-source scalable real-time messaging server for delivering messages to connected application users over modern transports.
- Several SSO sign-in methods
- REST or GraphQL API
See allDefault rank #14
90/100 fitHow well this app matches homelab experts, 0 to 100
Homelab Hacker
Wants control: APIs, scripts and many ways to run it.
LiveKit22.0k
LiveKit is an open source, scalable WebRTC media server for building real-time video, audio, and data experiences.
- Scriptable API
- Many ways to install
See all84/100 fitHow well this app matches homelab hackers, 0 to 100
68 projects
Novu
40.2k
Novu is an open-source communication infrastructure platform for sending and managing multi-channel notifications and agent conversations through a single API.
Custom CommunicationsPermissive LicenseAutomation Tools+2
6 ContainersFOSS with Issues
Rocket.Chat
46.4k
An open-source, secure, fully customizable communications platform for team collaboration and messaging.
Custom CommunicationsPermissive LicenseVideo Conferencing+3
14 ContainersFOSS with Issues
Chatwoot
38.7k
An open-source, self-hosted customer support platform for managing conversations across channels.
Custom CommunicationsSelf Hosting SolutionsTicketing Systems+2
4 Containers
LiveKit
22.0k
LiveKit is an open source, scalable WebRTC media server for building real-time video, audio, and data experiences.
Self Hosting SolutionsVideo ConferencingMedia Servers+1
Zulip
26.1k
Zulip is an open-source team chat app with topic-based threading for organized live and asynchronous conversations.
Custom CommunicationsPermissive LicenseSelf Hosting Solutions
Gotify
16.2k
Gotify/server is a self-hosted message server for sending and receiving real-time notifications.
Custom CommunicationsPermissive LicenseSelf Hosting Solutions+1
Single Container
buzz
36.6k
Buzz is a self-hostable workspace where humans and AI agents collaborate in shared rooms backed by a signed event log.
Self Hosting SolutionsCustom CommunicationsKnowledge Management+2
7 Containers
Typebot
10.6k
Typebot is a visual chatbot builder for creating advanced chatbots, embedding them in web or mobile apps, and collecting results in real time.
Custom CommunicationsWebsite BuildersLow Code Development+4
Mumble
8.4k
Mumble is an open source, low-latency, high-quality voice chat application with separate client and server components.
Custom CommunicationsAudio StreamingSelf Hosting Solutions+1
Mattermost
39.5k
Mattermost is a self-hosted collaboration platform for chat, workflow automation, voice calling, screen sharing, and AI integration.
Custom CommunicationsSelf Hosting SolutionsAutomation Tools+4
15 ContainersOpen CoreFOSS with Issues
Tinode
13.5k
Tinode is a full-stack instant messaging server with native clients for web, Android, iOS, and command-line use.
Custom CommunicationsVideo ConferencingSelf Hosting Solutions+1
Apprise
17.7k
A lightweight notification library and CLI that sends messages to many popular notification services.
Custom CommunicationsPermissive LicenseAutomation Tools
Janus
9.2k
Janus is an open source WebRTC server for building real-time communication applications.
Video ConferencingCopyleft LicenseCustom Communications+2
Centrifugo
10.9k
Centrifugo is an open-source scalable real-time messaging server for delivering messages to connected application users over modern transports.
Custom CommunicationsSelf Hosting SolutionsWeb Servers+1
FreeSWITCH
5.3k
FreeSWITCH is a software-defined telecom stack for voice-over-IP, SIP, SMS, and telecom app integrations.
SIP CommunicationCopyleft LicenseCustom Communications+2
Screego
10.7k
screego/server is a screen-sharing server for developers that provides high-quality, low-latency screen sharing.
Custom CommunicationsCopyleft LicenseSelf Hosting Solutions+1
WBO
2.7k
An online collaborative whiteboard for real-time drawing and editing by multiple users.
Custom CommunicationsSelf Hosting SolutionsDiagramming Tools+1
Openfire
3.1k
Openfire is an open-source XMPP server for real-time collaboration and instant messaging.
XMPP ServersCustom CommunicationsSelf Hosting Solutions+1
SimpleX Chat
19.6k
A private messaging platform with no user identifiers, offering encrypted chat, groups, and calls across mobile and terminal apps.
Custom CommunicationsVideo ConferencingSelf Hosting Solutions+1
Cloud Required
Fluxer
10.7k
Fluxer is a free and open source instant messaging and VoIP chat app for friends, groups, and communities.
Custom Communications
21 Containers
OpenWA
16.4k
OpenWA is an open-source WhatsApp API gateway with a dashboard, REST API, and pluggable storage and cache backends.
Custom CommunicationsAutomation ToolsAPI Management+1
5 Containers
Tox
2.7k
A peer-to-peer, serverless instant messenger and cryptographic network library focused on security and privacy.
Custom CommunicationsP2P File SharingCopyleft License
MongooseIM
1.8k
MongooseIM is a scalable XMPP server platform for building instant messaging systems.
XMPP ServersCustom CommunicationsSelf Hosting Solutions+1
Asterisk
3.7k
An open source PBX and telephony toolkit for building and running voice communication systems.
SIP CommunicationCustom CommunicationsSelf Hosting Solutions+1
One Time Secret
3.0k
A self-hostable service for creating one-time links that reveal sensitive information only once.
Custom CommunicationsSecret ManagementSelf Hosting Solutions+1
Fredy
1.6k
Fredy is a self-hosted real estate finder for Germany that scrapes multiple property platforms and sends notifications when new listings appear.
Automation ToolsPermissive LicenseSelf Hosting Solutions+2
once-campfire
4.8k
Campfire is a web-based chat application for self-hosted team messaging with rooms, direct messages, file attachments, search, and notifications.
Custom CommunicationsSelf Hosting SolutionsGroupware Suites
ntfy
35.2k
ntfy is a simple HTTP-based pub-sub notification service for sending push notifications to phones or desktops via scripts and PUT/POST requests.
Custom CommunicationsPermissive LicenseCopyleft License+2
Open Core
Tailchat
3.6k
Tailchat is a self-hostable next-generation noIM application platform for team collaboration in an own workspace, with a plugin system and microservice architecture.
Custom CommunicationsSelf Hosting SolutionsPermissive License
Tuwunel
2.7k
Tuwunel is a high-performance Matrix homeserver written in Rust.
Custom CommunicationsSelf Hosting SolutionsPermissive License
Stoat
2.7k
Stoat Self-Hosted provides Docker-based deployment instructions for running a full self-hosted Stoat instance, including backend, web front-end, file server, and proxy services.
Custom CommunicationsSocial NetworksFile & Object Storage+4
Hyphanet
1.2k
Freenet is a peer-to-peer platform for censorship-resistant communication and publishing, providing a distributed, encrypted, decentralized datastore.
Custom CommunicationsCopyleft LicenseSocial Networks+2
Element
13.6k
Element is a Matrix web and desktop client.
Custom CommunicationsVideo ConferencingPermissive License
Open Core
Live Helper Chat
2.2k
Live Helper Chat is an open-source live support and customer chat application for websites.
Custom CommunicationsTicketing SystemsVideo Conferencing+4
openSIPS
1.5k
OpenSIPS is a GPL-licensed SIP server implementation for building and managing VoIP signaling infrastructure.
SIP CommunicationCustom CommunicationsSelf Hosting Solutions+1
RetroShare
2.0k
RetroShare is a decentralized, private, secure, cross-platform communication toolkit for sharing files, chat, messages, forums, and channels.
Custom CommunicationsCopyleft LicenseSocial Networks+2
deltachat-android
1.9k
Android client for Delta Chat, an email-based messaging app.
Email SolutionsCustom Communications
GlobaLeaks
1.5k
GlobaLeaks is free and open-source whistleblowing software for setting up and maintaining secure reporting platforms.
Custom CommunicationsCopyleft LicenseSelf Hosting Solutions
Enigma 1/2 BBS
674
ENiGMA½ is a modern, highly customizable BBS software with support for traditional terminal access and web-based services.
Social NetworksPermissive LicenseCustom Communications+2
OTS
808
A one-time-secret sharing platform that encrypts secrets in the browser before sending them to a server and deletes them after first read.
Custom CommunicationsPastebinsSecret Management+2
chatto
2.9k
Chatto is a self-hostable chat application for teams and communities, with a bundled web frontend, server, CLI, and related identity/workflow components.
Custom CommunicationsVideo ConferencingSelf Hosting Solutions+1
4 Containers
CyTube
1.6k
CyTube is a synced video-watching and chat platform where users create channels to watch videos together in sync.
Media ServersMedia ManagementCustom Communications+2
SyncTube
395
SyncTube is a synchronized video-watching app with chat, playback control, and subtitle support that can be run locally or with Docker.
Media ServersMedia ManagementCustom Communications+2
SAMA
161
SAMA is a chat server and messaging protocol designed as an alternative to XMPP.
Custom CommunicationsCopyleft LicenseSelf Hosting Solutions
Synapse
4.7k
An open source Matrix homeserver implementation maintained by Element.
Custom CommunicationsSelf Hosting SolutionsProxy Servers+3
Open CoreFOSS with Issues
Shhh
420
A tiny Flask app for creating encrypted secrets and sharing them securely via temporary links.
Custom CommunicationsPermissive LicenseSecret Management+1
Chitchatter
2.3k
Chitchatter is a decentralized, end-to-end encrypted peer-to-peer communication tool for private chat, video, screen sharing, and file transfer.
Custom CommunicationsVideo ConferencingP2P File Sharing+1
Databag
1.5k
Databag is a federated messenger for self-hosting.
Custom CommunicationsVideo ConferencingSelf Hosting Solutions+2
Single Container