Psi

Psi A program for instant messaging over the Internet using the XMPP (Jabber) protocol. The program is free and distributed under the GPL license. It uses the Qt4 library (version 0.10 - earlier Qt3), so it is available for various operating systems.

Features:

• Multilingualism.
• Support for several accounts at once.
• A system of profiles.
• Transport] and conferencing support.
• Traffic encryption, SSL, STARTTLS, OpenPGP.
• Connection methods: direct connection, proxy: SOCKS4, SOCKS5, HTTPS.
• User-friendly interface: toolbars, fonts, colors, smileys, system icons.
• File Transfer.
• Service Discovery.
• Privacy settings.
• Notifications about typing.
• Ad-Hoc commands support for bots and transports.
• Partial PEP support - publication of personal information about your mood and current song in the player.
• Full conference bookmark management.
• Displaying all connections to accounts from other clients via Self contact.
• Ability to associate a contact with an arbitrary image.
• Setup keyboard shortcuts.
• Dynamic overlapping of chat windows and conference windows using tabs.
• Remote client management.
• Plugin support through native API.
• On-the-fly spell checking with the Aspell library.
• Sound for events.
• Status templates.
• History of messages on the client side.
• XML console.
• Jingle - voice communication.