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SMPlayer vs ImPlay: catalog facts
SMPlayer	ImPlay
Free Free and open source under the GPL 2.0.	Free Free and open source.
Windows, macOS, Linux	Windows, macOS, Linux
Remembers position, audio track and subtitles per file mpv and MPlayer engines, so format coverage is excellent	Built on mpv's playback engine Graphical menus on top of mpv
The interface is dated Qt and skins only go so far Two engines means two sets of quirks when something misbehaves	Small one-developer project Interface looks like a developer tool rather than a native app
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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