Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)

• UpdatedDec 16, 2025
• Erlang

Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, IRC and many other useful features.

• UpdatedJul 12, 2025
• Java

Web-based XMPP/Jabber chat written in JavaScript

• UpdatedDec 14, 2025
• JavaScript

An XMPP server licensed under the Open Source Apache License.

• UpdatedDec 16, 2025
• Java

A modular and portable open source XMPP client library written in Java for Android and Java (SE) VMs

• UpdatedDec 2, 2025
• Java

Modern XMPP ("Jabber") Chat Client using GTK/Vala

• UpdatedDec 13, 2025
• Vala

MongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is fault-tolerant and can utilise the resources of multiple clustered machines.

• UpdatedDec 16, 2025
• Erlang

Ncurses based XMPP client

• UpdatedDec 3, 2025
• C

💬 Instant messaging server for the Extensible Messaging and Presence Protocol (XMPP).

• UpdatedJul 19, 2023
• Go

An IRC to other chat networks gateway 🐝

• UpdatedOct 5, 2025
• C

Monal for XMPP (iOS and macOS)

• UpdatedDec 16, 2025
• Objective-C

Cross-platform real-time collaboration client optimized for business and organizations.

• UpdatedDec 1, 2025
• Java

Go XMPP Library (From Yasuhiro Matsumoto and based on the code from Russ Cox)

• UpdatedDec 11, 2025
• Go

Miranda NG: Next Generation of Miranda IM

• UpdatedDec 15, 2025
• C++

JabberD XMPP Server

• UpdatedJan 2, 2019
• C

Adium is an open source and free instant messaging application for macOS that can connect to XMPP (Jabber), IRC and more.

• UpdatedOct 20, 2021
• Objective-C

(M) Highly optimized, extremely modular and very flexible XMPP/Jabber server

• UpdatedNov 22, 2025
• Java

XEP-0384: OMEMO Encryption for libpurple.

• UpdatedOct 28, 2024
• C

(M) XMPP client for macOS based on TigaseSwift XMPP library

• UpdatedJun 16, 2025
• Swift

(M) Public Project of Tigase Messenger for iOS devices based on Tigase Swift XMPP library.

• UpdatedAug 17, 2025
• Swift