Cinema HDR
Windows & macOS · Licensed product
O11
4K Downloader for Windows and Mac — precise, licensed media workflows for content you own or are authorized to access.
01 / Product
Desktop power.
Desktop power.
Clear control.
Native desktop apps for Windows and macOS — high-fidelity presentation, multi-service modules, and license-gated installs.
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4K · HDR · Dolby Vision · Atmos
Presentation-ready format lanes for Ultra HD picture and immersive audio when the source and rights allow.
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Multi-service modules
Sixty-plus streaming, regional, learning, and tool modules in the O11 Downloader catalog — with real service icons and letter fallbacks.
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Licensed Windows & Mac desktops
Activation and validation against your O11DRM license portal — keys issued for authorized installs on either platform.
02 / Formats
Picture & sound.
Picture & sound.
Selected with intent.
Cinema HDR
HDR4KUHD
2160p ultra HD
Immersive audio
Format availability depends on source media, device support, and rights. Dolby marks are trademarks of Dolby Laboratories.
03 / Available with O11 Downloader
Supported sites.
Supported sites.
One catalog.
Service and site modules available with O11 4K Downloader. Use only for content you own, public-domain content, or content you are expressly authorized to access.
Services
Available with O11 Downloader
Authorized use only — own, public-domain, or expressly permitted content. Access, eligibility, and media rights remain your responsibility. View status board →
04 / Get the apps
Windows
macOS
Windows & Mac.
Licensed O11 4K Downloader desktops for PC and Mac. Contact O11DRM for purchase and license key issuance.
Windows desktop
Native WPF build for Windows 10/11. Request a licensed installer for your machine.
Request Windows buildmacOS app
Avalonia .NET app for Apple Silicon & Intel. Binary packaging / notarization is in progress — request early access or build instructions.
Request macOS appComing soon as a signed download. Source builds on macOS with .NET 8.
Use only for content you own, public-domain content, or content you are expressly authorized to access.
05 / Licensing
License required.
License required.
Contact for a key.
O11 4K Downloader requires a license for Windows and macOS. Keys are issued by O11DRM for authorized installs — desktop apps validate against the license portal.
For sales, renewals, or key support, contact hello@o11drm.com. Portal access is provided with your order — it is not linked from this public page.