Clapper – GNOME Media Player Built Using GJS with GTK4 Toolkit

Clapper is a GNOME media player. It’s built using GJS (GNOME JavaScript bindings) with the GTK4 toolkit, so you’ll see some of the new GTK4 features in action. The media player uses GStreamer as a media backend and renders everything via OpenGL.

GTK is a free and open-source cross-platform widget toolkit for creating graphical user interfaces (GUIs). Offering a complete set of widgets, GTK is used from small one-off tools to complete application suites.