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OpenCore Auxiliary Tools (OCAT) is a cross-platform graphical utility developed by ic005k that simplifies the creation and maintenance of configuration files for Acidanthera’s OpenCore boot manager, a widely adopted bootloader used in macOS-centric hackintosh environments as well as multi-boot systems requiring precise control over the pre-OS boot chain. By presenting an intuitive interface for editing config.plist files, the application eliminates the need for manual XML manipulation, reducing syntax errors while exposing every key documented in the OpenCore Configuration Manual. Typical use cases include enabling or disabling kernel quirks, mapping USB ports, injecting device properties, selecting custom ACPI tables, and switching between macOS, Windows, or Linux boot entries without restarting the machine. System builders and firmware researchers also rely on OCAT to validate their configurations against the latest OpenCore checksums before deploying updates across multiple workstations. Distributed under an open-source license, the program belongs to the “System Utilities – Boot Manager” category and is currently offered in two public releases: the legacy branch (version 2) and the actively maintained 20250001 stream, each downloadable as a portable executable for Windows, macOS, and Linux. The software is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.
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