Kadu : Free Open Source Instant Messenger Client for Gadu-Gadu and XMPP

Kadu is free software and open source gadu-gadu protocol instant messenger client for Linux, BSD and Mac. Kadu has become popular among Linux and Macintosh users in Poland, as it offers more functionality than the implementation of Gadu-Gadu in multiprotocol messengers such as Pidgin.

Kadu offers good-looking and functional messenger. It's full Gadu-Gadu protocol compatibility, basic  XMPP support, easy and comprehensive configuration.
Kadu software does not contain advertisements. Since 0.6.5 version there is an unofficial Windows port available. Kadu is built on Qt, so it can be run on all platforms supporting the Qt toolkit.

Features

Kadu offers most of the official client's features like send SMS, file transfer, status message, the ability to view users' information from the public catalogue, importing lists of contacts (stored on the Gadu-Gadu servers), widely configurable, five languages available (English, French, German, Italian and Polish), chat, smileys, User-friendly, fast, stable, flexible, No adware, Open source,encryption, etc.

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