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KMPlayer vs OmniPlayer: catalog facts
KMPlayer	OmniPlayer
Free Free to download and use.	Freemium The page offers a free download and describes the app as free to try with an upgrade…
Windows, macOS	macOS
Built-in codecs for most formats Plays 4K and 3D video	Plays a broad range of audio and video formats Supports subtitles and playback speed controls
Closed source Little detail available from the official site about current features	Mac only
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 8, 2026

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