Video software that uses Qt

media player, streaming client, streaming media server, and audio and video converter (transcoder), free/libre and open-source cross-platform software

Kdenlive (; acronym for KDE Non-Linear Video Editor) is a free and open-source video editing software based on the MLT Framework, KDE and Qt.

Kaffeine is a media player for Unix-like operating systems by KDE.

Avidemux is an application for non-linear video editing and transcoding multimedia files. The developers intend it as "a simple tool for simple video processing tasks" and to allow users "to do elementary things in a very straightforward way". It is written in C++ and uses Qt for its graphical user interface (GUI), and FFmpeg for its multimedia functions. Since version 2.4, it has two user interfaces: a GUI and a command-line interface. Since version 2.6, the original GTK port has been unmaintained and is now discontinued. It is free and open-source software released with a GNU General Public

xine is a multimedia playback engine for Unix-like operating systems released under the GNU General Public License. xine is built around a shared library (xine-lib) that supports different frontend player applications. xine uses libraries from other projects such as liba52, libmpeg2, FFmpeg, libmad, FAAD2, and Ogle. xine can also use binary Windows codecs through a wrapper, bundled as the w32codecs, for playback of some media formats that are not handled natively.

SMPlayer is a cross-platform graphical front-end for MPlayer and mpv and forks of Mplayer using GUI widgets offered by Qt. SMPlayer is free and open-source software subject to the terms of the GNU General Public License version 2 or later. SMplayer has been localized in more than 30 languages.

MythTV is a free and open-source digital video recorder and media center application with a simplified "10-foot user interface" design for the living room TV. It turns a computer with the necessary hardware into a network streaming digital video recorder, a digital multimedia home entertainment system, or a home theater PC. It can be considered a free and open-source alternative to TiVo or Windows Media Center. It runs on various operating systems, primarily Linux, macOS, and FreeBSD.

MKVToolNix is a collection of tools for the Matroska media container format by Moritz Bunkus including mkvmerge. The free and open source Matroska libraries and tools are available for various platforms including Linux and BSD distributions, macOS and Microsoft Windows. The tools can be also downloaded from video software distributors and FOSS repositories.

SimpleScreenRecorder is a Qt-based free and open source multithreaded screencast software made for Linux and Unix-like operating systems which can handle similar tasks FFmpeg/avconv and VLC does.