Pidgin 2.4.1 - Multi-purpose chat software

Pidgin (formerly GAIM) is a powerful open-source instant messaging software that supports multiple protocols. The included IM protocols are AIM, Bonjour, Gadu-Gadu, Groupwise, ICQ, IRC, MSN, QQ, SILC, SIMPLE, Sametime, XMPP, Yahoo! IM, Zephyr, etc., which are very comprehensive. It is worth mentioning that QQ is no longer supported in the form of a plug-in, but can be used directly.