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BS.Player vs KMPlayer: catalog facts
BS.Player	KMPlayer
Freemium Free version available, with a paid PRO edition.	Free Free to download and use.
Windows	Windows, macOS
Automatic subtitle download Wide format support including DVD and streams	Built-in codecs for most formats Plays 4K and 3D video
Windows only Some features reserved for the paid PRO edition	Closed source Little detail available from the official site about current features
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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