iMessage is an instant messaging service.

BlackBerry Messenger, also known as BBM is an instant messenger and videotelephony application included on BlackBerry devices that allows messaging and voice …

ChatSecure is a messaging application for iOS which allows OTR and OMEMO encryption for the XMPP protocol.

Conversations is an open source XMPP/Jabber client for the Android platform.

Disa is your new messaging hub. Conversations from different services can seamlessly be joined together, or disbanded within seconds.

Facebook Messenger is the official Facebook app that lets you have text conversations with all of your friends on the popular social network.

Bit Chat is a secure, peer-to-peer, open source instant messenger with end-to-end encryption.

Blink is the best real-time communications client using the SIP protocol.

Coccinella is a free and open-source cross-platform client for the XMPP/Jabber-instant messaging-protocol.

Dasher Messenger provids a way to message friends.

Empathy is an instant messaging (IM) and voice over IP (VoIP) client which supports text, voice, video, file transfers, and inter-application communication ov…

Gajim is an instant messaging client for the XMPP protocol which uses the GTK+ toolkit.