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KMPlayer vs Light Alloy: catalog facts
KMPlayer	Light Alloy
Free Free to download and use.	Free Completely free to download and use.
Windows, macOS	Windows
Built-in codecs for most formats Plays 4K and 3D video	Portable version available Highly customisable with skins
Closed source Little detail available from the official site about current features	Windows only Official site and help are in Russian
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 September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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