Karabiner-Elements is a powerful utility for keyboard customization on macOS Sierra or later.

You can download Karabiner-Elements from the official site.

Alternatively, for users of homebrew, Karabiner-Elements may be installed with brew install --cask karabiner-elements.

You can download previous versions of Karabiner-Elements from here.

• macOS 11 Big Sur
• macOS 12 Monterey
• macOS 13 Ventura

https://karabiner-elements.pqrs.org/docs/

If you would like to contribute financially to the development of Karabiner-Elements, donations can be made via https://karabiner-elements.pqrs.org/docs/pricing/

System requirements to build Karabiner-Elements:

• macOS 12+
• Xcode 13.3+
• Command Line Tools for Xcode (xcode-select --install)
• xz (brew install xz)
• XcodeGen (brew install xcodegen)
• CMake (brew install cmake)

1. Get source code by executing the following command in Terminal.app.

   git clone --depth 1 https://github.com/pqrs-org/Karabiner-Elements.git
   cd Karabiner-Elements
   git submodule update --init --recursive --depth 1

2. (Optional) If you have a codesign identity:

   1. Find your codesign identity.

      security find-identity -p codesigning -v | grep 'Developer ID Application'

      The result is as follows.

      1) 8D660191481C98F5C56630847A6C39D95C166F22 "Developer ID Application: Fumihiko Takayama (G43BCU2T37)"
      

      Your codesign identity is 8D660191481C98F5C56630847A6C39D95C166F22 in the above case.

   2. Set environment variable to use your codesign identity.

      export PQRS_ORG_CODE_SIGN_IDENTITY=8D660191481C98F5C56630847A6C39D95C166F22

   3. Find your codesign identity for installer signing.

      security find-identity -p basic -v | grep 'Developer ID Installer'

      The result is as follows.

      1) C86BB5F7830071C7B0B07D168A9A9375CC2D02C5 "Developer ID Installer: Fumihiko Takayama (G43BCU2T37)"
      

      Your codesign identity is C86BB5F7830071C7B0B07D168A9A9375CC2D02C5 in the above case.

   4. Set environment variable to use your codesign identity for installer signing.

      export PQRS_ORG_INSTALLER_CODE_SIGN_IDENTITY=C86BB5F7830071C7B0B07D168A9A9375CC2D02C5

3. Build a package by executing the following command in Terminal.app.

   make package

   The make script will create a redistributable Karabiner-Elements-VERSION.dmg in the current directory.

Karabiner-Elements uses some pre-built binaries in the source tree.

• src/vendor/Karabiner-DriverKit-VirtualHIDDevice/dist/Karabiner-DriverKit-VirtualHIDDevice-*.dmg
• Sparkle.framework in src/apps/SettingsWindow/

The above make package command does not rebuild these binaries.
(These binaries will be copied in the distributed package.)

If you want to rebuild these binaries, you have to build them manually.
Please follow the instruction of these projects.