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 is written in C++. Learn C++ with our recommended free books and free tutorials.
Related Software
| Graphical XMPP Clients | |
|---|---|
| Gajim | Full featured and easy to use XMPP client |
| Pidgin | Multi-protocol instant messaging client |
| Dino | Clean and reliable Jabber/XMPP experience while having your privacy in mind |
| Kaidan | Simple, user-friendly and modern chat client |
| Psi | Cross-platform XMPP instant messaging client |
| Swift | Clean design and comprehensive feature set |
Read our verdict in the software roundup.
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