Poezio is a free console XMPP client (the protocol on which the Jabber IM network is built). Its goal is to let you connect very easily (no account creation needed) to the network and join various chatrooms, immediately. It tries to look like the most famous IRC clients (weechat, irssi, etc). Many commands are identical and you won't be lost if you already know these clients. Configuration can be made in a configuration file or directly from the client. You'll find the light, fast, geeky and anonymous spirit of IRC while using a powerful, standard and open protocol.

weechat-wee-slack is a WeeChat native client for Slack. It provides supplemental features only available in the web/mobile clients such as synchronizing read markers, typing notification, threads (and more)! It connects via the Slack API, and maintains a persistent websocket for notification of events.

This package provides Python bindings to Zulip's API.

senpai is an IRC client that works best with bouncers.

This package provides a C++ library for parsing, formatting, and validating international phone numbers.

pounce is a multi-client, TLS-only IRC bouncer. It maintains a persistent connection to an IRC server, acting as a proxy and buffer for a number of clients.

This package provides python-pypresence, a Discord RPC client written in Python.

OTR allows you to have private conversations over instant messaging by providing: (1) Encryption: No one else can read your instant messages. (2) Authentication: You are assured the correspondent is who you think it is. (3) Deniability: The messages you send do not have digital signatures that are checkable by a third party. Anyone can forge messages after a conversation to make them look like they came from you. However, during a conversation, your correspondent is assured the messages he sees are authentic and unmodified. (4) Perfect forward secrecy: If you lose control of your private keys, no previous conversation is compromised.

This module implements XEP-0357: Push Notifications.

Some platforms, notably Apple’s iOS and many versions of Android, impose limits that prevent applications from running or accessing the network in the background. This makes it difficult or impossible for an XMPP application to remain reliably connected to a server to receive messages.

In order for messaging and other apps to receive notifications, the OS vendors run proprietary servers that their OS maintains a permanent connection to in the background. Then they provide APIs to application developers that allow sending notifications to specific devices via those servers.

When you connect to your server with a client that requires push notifications, it will use this module to set up a “push registration”. When you receive a message but your device is not connected to the server, this module will generate a notification and send it to the push gateway operated by your application’s developers). Their gateway will then connect to your device’s OS vendor and ask them to forward the notification to your device. When your device receives the notification, it will display it or wake up the app so it can connect to XMPP and receive any pending messages.

GNT is an ncurses toolkit for creating text-mode graphical user interfaces in a fast and easy way. It is based on GLib and ncurses.

Nheko want to provide a native desktop app for the Matrix protocol that feels more like a mainstream chat app and less like an IRC client.

Many matrix features are supported, including user registration, rooms, typing notification, emojis, E2E encryption, and voip calls.

qTox is a Tox client that follows the Tox design guidelines. It provides an easy to use application that allows you to connect with friends and family without anyone else listening in.

pn provides a command line tool that allows users to operate on phone numbers (get validity information, reformat them, or extract numbers from a text snippet), using libphonenumber.

Purple-Mattermost is a plug-in for Purple, the instant messaging library used by Pidgin and Bitlbee, among others, to access Mattermost servers.

This library implements OMEMO of XMPP (XEP-0384) in C.

This module implements support for a Tigase XMPP extension, Priority of notifications. It is a custom extension to XEP-0357: Push Notifications.

This module adds the ability to set vCard for MUC rooms. One of the most common use cases is to define avatars for MUC rooms.

LibGadu is library for handling Gadu-Gadu instant messenger protocol. The library is written in C and aims to be operating system and environment independent.

BitlBee brings IM (instant messaging) to IRC clients, for people who have an IRC client running all the time and don't want to run an additional IM client. BitlBee currently supports XMPP/Jabber (including Google Talk), MSN Messenger, Yahoo! Messenger, AIM and ICQ, and the Twitter microblogging network (plus all other Twitter API compatible services like identi.ca and status.net).

This package shows CAPTCHA without running proprietary code.

Prosody is a modern XMPP communication server. It aims to be easy to set up and configure, and efficient with system resources. Additionally, for developers it aims to be easy to extend and give a flexible system on which to rapidly develop added functionality, or prototype new protocols.

Official fork of the C library implementation of the Tox encrypted messenger protocol.

Psi+ is a spin-off of Psi XMPP client. It is a powerful XMPP client designed for experienced users.

This module implements support for sending messages in a MUC to affiliated users who are not in the room. This is a custom extension by Tigase to allow push notifications from MUCs to users who are not currently connected.