XMPP

Kaidan – modern chat app

Last Updated on March 2, 2026

Kaidan is a simple, user-friendly and modern chat client. It uses the open communication protocol XMPP (Jabber).

The user interface makes use of Kirigami and QtQuick, while the back-end of Kaidan is entirely written in C++ using Qt and the Qt-based XMPP library QXmpp.

Kaidan does not have all basic features yet and has still some stability issues.

Key Features

  • Audio messages – send audio messages for an easier and more personal conversation.
  • Video messages – send short video messages to capture a moment and let your contacts experience it with you.
  • File sharing – share files with your chat partners when you need to work together.

Website: www.kaidan.im
Support: invent.kde.org
Developer: Kaidan developers and contributors
License: GNU General Public License 3+ with OpenSSL exception

Kaidan
Click for full size image

Kaidan is written in C++. Learn C++ with our recommended free books and free tutorials.


Related Software

Graphical XMPP Clients
GajimFull featured and easy to use XMPP client
PidginMulti-protocol instant messaging client
DinoClean and reliable Jabber/XMPP experience while having your privacy in mind
KaidanSimple, user-friendly and modern chat client
PsiCross-platform XMPP instant messaging client
SwiftClean design and comprehensive feature set

Read our verdict in the software roundup.


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