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SPECIFICTION
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OpenCore

github.com

Free plan WindowsmacOSLinuxSelf-hosted
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Spec score 7.6 #13 of 29 in Boot Manager Software

What it is

OpenCore is a bootloader distributed with a development SDK. Its repository includes UEFI support libraries for Apple-specific UEFI drivers, with support for loading Apple disk images and manipulating PNG images. The libraries also cover Apple PE image signature verification, supplemental Apple UEFI secure boot code, XNU kernel driver injection, and a patch engine. For configuration, they parse plist files; OcGuardLib provides safe integral arithmetic, type-alignment checks, and a UBSan runtime. The project lists UEFI and BIOS support, multiboot, boot-entry editing, and boot-menu customization. It is described as multiplatform, with Linux, macOS, Windows, and self-hosted among the listed platforms. OpenCore is free and open source under the BSD-3-Clause license. Release source archives are available as zip and tar.gz files, including version 1.0.7. The README points users to discussion forums in several languages, including KVM configuration discussion. Documentation also lists third-party kernel extensions and says that list is informational and provided without warranty.

Spec sheet

Purpose
OpenCore is a bootloader distributed with a development SDK.Read 8 Oct 2026 · github.com
Support
The project README directs users to a list of OpenCore discussion forums.Read 8 Oct 2026 · github.com
License
The repository identifies its license as BSD-3-Clause.Read 8 Oct 2026 · github.com
Community forums
The project lists forums in Russian, German, English, and Italian, including KVM configuration discussion.Read 8 Oct 2026 · github.com
Configuration
The libraries include parsing for the plist configuration format.Read 8 Oct 2026 · github.com
Downloads
The tags page lists zip and tar.gz source archives for releases, including version 1.0.7.Read 8 Oct 2026 · github.com
Image support
The libraries include Apple disk image loading and PNG image manipulation.Read 8 Oct 2026 · github.com
Kernel extensions
The project documentation lists third-party kernel extensions and notes that the list is informational and provided without warranty.Read 8 Oct 2026 · github.com
Kernel support
The libraries include XNU kernel driver injection and a patch engine.Read 8 Oct 2026 · github.com
Safety checks
OcGuardLib implements safe integral arithmetic, type alignment checking, and a UBSan runtime.Read 8 Oct 2026 · github.com
Security features
The libraries include Apple PE image signature verification and supplemental Apple UEFI secure boot code.Read 8 Oct 2026 · github.com
UEFI libraries
The repository includes UEFI support libraries for Apple-specific UEFI drivers.Read 8 Oct 2026 · github.com

Plans and prices

OpenCore Free Not applicable; public open-source repository · BSD-3-Clause license Read 8 Oct 2026 · github.com

Every OpenCore plan and price →

Strong points and limits

Strong points

  • Free, open-source repository under BSD-3-Clause
  • Lists UEFI and BIOS support
  • Includes multiboot and boot-menu customization
  • Source archives include version 1.0.7

Limits

  • Third-party kernel extension list is informational and without warranty
  • Listed platforms include self-hosted, Linux, macOS, and Windows

Who it suits

OpenCore suits users looking for a bootloader with UEFI and BIOS support, multiboot, and boot-entry and boot-menu controls. Its libraries also provide functions for Apple-specific UEFI, image, and kernel work.

Verdict

OpenCore combines boot-management options with libraries for Apple-specific UEFI and kernel tasks. It is free, but the third-party kernel extension list comes without warranty.

Where Specifiction places it

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