Xabber is the most popular open-source XMPP client for Android. It supports multiple XEPs, Off-The-Record (OTR) chat encryption and is available in multiple languages. Xabber is standards compliant and secure, supporting a vast number of XMPP extensions and services. It is compatible with all standard XMPP servers. Ejabberd, Prosody, Operfire, etc.

Xabber - XMPP client for Android

Caprine is an unofficial and privacy focused Facebook Messenger app with many useful features. It has support for Work Chat: Messenger for Workplace, You can send code blocks by using Markdown syntax. It is built with Electron framework.

Caprine - Elegant Facebook Messenger Desktop App

JARVIS on Messenger is Just A Rather Very Intelligent System, now on Messenger!

JARVIS-on-Messenger - A community-driven python bot that aims to be as simple as possible to serve humans with their everyday tasks

Franz is a messaging app that combines chat & messaging services into one application. Franz currently supports Slack, WhatsApp, WeChat, Facebook Messenger, Telegram, Google Hangouts, GroupMe, Skype and many more. Franz allows you to add each service many times. This makes Franz the perfect tool to manage multiple business and private accounts all at the same time. You could even use five different Facebook Messenger accounts at once, if some inexplicable reason urges you to do so.

Franz - Free messaging app for services like WhatsApp, Slack, Messenger and many more

Tinode is a  Instant Messaging Server. It is not XMPP/Jabber. It is not compatible with XMPP. It's meant as a replacement for XMPP. On the surface, it's a lot like open source WhatsApp or Telegram. The goal of this project is to deliver on XMPP's original vision: create a modern open platform for federated instant messaging with an emphasis on mobile communication. A secondary goal is to create a decentralized IM platform that is much harder to track and block by the governments.

Tinode - Instant Messaging Server


Ferdi is a messaging browser that allows you to combine your favorite messaging services into one application. It is based on Franz - a software already used by thousands of people - with the difference that Ferdi gives you many additional features and doesn't restrict its usage. It natively support for 100+ services. 

Ferdi - A messaging browser that allows you to combine your favorite messaging services into one application

Messenger4j is an ultimate Java library for building Chatbots on the Facebook Messenger Platform. If you are excited about building Chatbots on the Facebook Messenger Platform, messenger4j is all you need. 


Messenger4j - A Java library for the Messenger Platform

Kiwi IRC is a versatile web based messenger using IRC. It works out of the box with a default IRC network - or use your own. It supports Single or multiple IRC network connections, Desktop notifications, Themable and rich plugin support such as file uploading and video calling and lot more.

Kiwi IRC - Next generation of the Kiwi IRC web client

Conversations is the instant messaging client for the Android. It supports XMPP, Jabber client, Encryption. It supports to send and receive images as well as other kind of files, Pictures / Avatars for your Contacts, Syncs with desktop client, Share your location, Send voice messages, Multiple accounts / unified inbox and lot more.


Conversation - Instant Messaging for Android

qwebirc is a fast, easy to use, free and open source IRC client designed by and originally just for the QuakeNet IRC network. It supports most ircds out of the box, SSL/TLS support for the browser and server, Multiple channels and queries, Scalability via trivial sharding with sticky sessions and lot more.

qwebirc - Fast, easy to use, free and open source web IRC client

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