Formerly, two web versions, WebQQ (full version) and WebQQ Mini (Lite version), which made use of Ajax, were available. The official client runs on Microsoft Windows and a beta public version was launched for Mac OS X version 10.4.9 or newer.

Other features were later added, such as chatrooms, games, personal avatars (similar to 'Meego' in MSN), online storage, and Internet dating services. QQ was first released as a ' network paging' real-time communications service. The software inherited existing functions from ICQ, and additional features such as software skins, people's images, and emoticons. Īfter the threat of a trademark infringement lawsuit by the AOL-owned ICQ, the product's name was changed to QQ (with 'Q' and 'QQ' used to imply 'cute').

Tencent QQ was first released in China in February 1999 under the name of OICQ ('Open ICQ', a reference to the early IM service ICQ). As of March 2022, there were 563.8 million monthly active QQ accounts. QQ offers services that provide online social games, music, shopping, microblogging, movies, and group and voice chat software. Tencent QQ ( Chinese: 腾讯QQ), also known as QQ, is an instant messaging software service and web portal developed by the Chinese technology company Tencent.

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