OggConvert is nominally a GNOME utility, but depends only on the GStreamer Python bindings package and uses GTK+ libraries, allowing it to run in a number of desktop environments.
An Experimental Windows version exists and limited support is offered for Solaris and macOS, as the author is unable to test on these platforms.
OggConvert uses a point and click interface, requiring the selection of a file and format to convert to.
Providing a gstreamer plugin exists for the media you want to convert, it supports a wide variety of file types.
OggConvert is available to download from the author's page as packaged files for Ubuntu, Fedora,[1] Debian[2] and Windows.