Dendrite
Matrix & XMPPSecond-generation Matrix homeserver written in Go
Replaces Slack, Discord
Best Lightweight Matrix & XMPP for self-hosting
The 26 best Lightweight matrix & xmpp you can self-host, ranked by community traction.
Cinny
Matrix & XMPPSimple, elegant and secure Matrix client
Replaces Slack, Discord
Converse.js
Matrix & XMPPWeb-based XMPP/Jabber chat client
Replaces Slack
FluffyChat
Matrix & XMPPCute, cross-platform Matrix messenger
Replaces WhatsApp, Telegram
Dino
Matrix & XMPPModern XMPP chat client for the desktop
Replaces Skype, Slack
Nheko
Matrix & XMPPDesktop Matrix client with native Qt interface
Replaces Slack, Discord
Conduit
Matrix & XMPPSimple, fast and reliable Matrix homeserver in Rust
Replaces Slack, Discord
ZNC
Matrix & XMPPAdvanced and flexible IRC bouncer
Replaces IRCCloud
gomuks
Matrix & XMPPTerminal-based Matrix client written in Go
Replaces Slack, Discord
Profanity
Matrix & XMPPConsole-based XMPP client inspired by irssi
Replaces Slack
Convos IRC
Matrix & XMPPAlways-online web IRC client you can self-host
Replaces Slack, IRCCloud
JSXC
Matrix & XMPPJavaScript XMPP client for the browser
Replaces Slack
matrix-nio
Matrix & XMPPPython library for building Matrix clients and bots
Replaces Slack bot SDK
Continuwuity
Matrix & XMPPCommunity-maintained Rust Matrix homeserver
Replaces Slack, Discord
Synapse Admin
Matrix & XMPPWeb admin interface for Synapse Matrix homeservers
jabberd2
Matrix & XMPPLightweight C implementation of the XMPP server
Replaces Slack
Construct
Matrix & XMPPHigh-performance Matrix homeserver written in C++
Replaces Slack, Discord
Pantalaimon
Matrix & XMPPEnd-to-end encryption-aware Matrix reverse proxy
Sliding Sync Proxy
Matrix & XMPPStandalone sync proxy enabling fast Matrix clients
Coqui Chat Synapse-MAS
Matrix & XMPPOAuth2 and OIDC authentication service for Matrix
aioxmpp
Matrix & XMPPPure-Python XMPP client library and toolkit
Replaces Slack bots
Poezio
Matrix & XMPPConsole XMPP client modeled after IRC clients
Replaces Slack
Sygnal
Matrix & XMPPReference push notification gateway for Matrix
Replaces Firebase Cloud Messaging
Metronome IM
Matrix & XMPPLightweight, fork-based XMPP communication server
Replaces Slack, WhatsApp
go-sendxmpp
Matrix & XMPPCommand-line tool to send XMPP messages
Replaces Slack incoming webhooks
conduwuit
Matrix & XMPPWell-maintained fork of the Conduit Matrix homeserver
Replaces Slack, Discord
No apps match these filters.
Every option here is open-source and self-hostable, tagged Lightweight within the matrix & xmpp category. Compare them on the individual app pages for setup difficulty and resource requirements.