KMPlayer vs mpv

KMPlayer is a media player for Windows, macOS, iOS, and Android, with network playback, subtitles, hardware acceleration, and 4K playback. Listed formats include AVI, MP4, MKV, MOV, WMV, FLV, MPEG, MP3, AAC, FLAC, WAV, SRT, ASS, SSA, and WebVTT. The mobile app can transfer files between a phone and PC on the same Wi-Fi network and includes cloud playback. Users can change subtitle size, color, and position, and adjust playback speed from 0.25x to 4x. Video can play in the background, and YouTube playback is available by entering a URL. Premium features for Android include magnet playback, GIF creation, media cropping, and MP3 conversion. KMPlayer 64X supports 4K, 8K, UHD, and 60FPS video, and the PC versions are available in 32-bit and 64-bit editions as well as Mac. The player is presented as free for PC and mobile; the pricing note lists a free plan and a 3-day trial. No price is listed for Premium.

mpv is a free, open-source command-line media player for Windows, macOS, Linux, and Android. It plays a wide range of media formats, audio and video codecs, and subtitle types, including Matroska (MKV) and MP4, with network playback and 4K playback support. Its interface is deliberately limited: there is no full graphical interface, only a small on-screen controller for basic playback. Video output is based on OpenGL, Vulkan, and D3D11, with scaling, color management, frame timing, interpolation, and HDR features. mpv can use hardware decoding APIs on its supported platforms, and decoding can be switched on while the player is running. Scripts and user-created scripts can extend its behavior; developers can also use its C API to embed it in other applications. The project is actively developed. The default license is GPLv2 or later, with LGPLv2.1 or later available for builds configured with -Dgpl=false. Only the latest stable release receives security updates.