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Clapper vs mpv: catalog facts
Clapper	mpv
Free Free and open source under GPL and LGPL licences.	Free Free software with no paid version.
Linux	Windows, macOS, Linux, Command line
Native GTK4 interface that fits GNOME GStreamer-based playback	High quality video output through OpenGL, Vulkan and D3D11, with scaling, colour management, frame timing… Hardware decoding on most platforms, switchable at runtime with --hwdec
Aimed at Linux and the GNOME desktop Format support depends on installed GStreamer plugins	There is no real graphical interface, only a small on-screen controller over the video Configuration means editing mpv.conf and input.conf by hand
Downloadable app	Downloadable app
Open source	Open source
License: GPL and LGPL	License: GPL-2.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.