QtJambi is a Java binding of the cross-platform application framework Qt.

In addition, the QtJambi generator can be used to create Java bindings for other Qt libraries and future versions of Qt.

Unlike GTK, there are no Swing LAF implementations that use Qt for rendering.

QtJambi supports Linux and other flavours of Unix such as macOS, as well as Microsoft Windows.

QtJambi was originally developed by TrollTech (currently known as "The Qt Company") until March 2009, but development didn't continue after being bought by Nokia, as official support for QtJambi by Nokia ended in March 2010.