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About the developer

3.8K Stars 325 Forks The Unlicense 10.6K Commits 112 Opened issues


Karabiner (KeyRemap4MacBook) is a powerful utility for keyboard customization.

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Build Status License


Karabiner is obsoleted on macOS Sierra (10.12) or later.
Please use Karabiner-Elements.


Karabiner is a powerful utility for keyboard customization.

  • Change the key mappings (For example, "Change Right Option to Enter")
  • Change the key repeat speed.
  • The revival of a lost NumPad key (Fn+jkluio789…)
  • Features for more efficient operations. (Emacs Mode, Vi Mode, Mouse Keys Mode, ...)

Prior to version 9.3.0, Karabiner was called KeyRemap4MacBook.

Please use Karabiner-Elements on macOS Sierra (10.12) or later.

We made Karabiner-Elements from scratch due to kernel architecture changes in macOS Sierra.

Useful links

  • Latest build:
  • Mirror:
  • Google Group:!forum/osx-karabiner
  • List of key names:

You can also get the latest stable release package via fixed URL.

$ curl -L -O

System requirements

Karabiner works for all Mac products, including the MacBook series, iMac, Mac mini, and Mac Pro, with the requirement that the product runs OS X 10.9 (Mavericks) or higher, up until MacOS 10.12 (Sierra), which is not supported.

  • If you require Karabiner for macOS 10.12, please use Karabiner Elements.
  • If you require Karabiner for OS X 10.6 - 10.8, please use KeyRemap4MacBook 8.4.0.
  • If you require Karabiner for OS X 10.4 - 10.5, please use KeyRemap4MacBook 5.1.0.

How to build

System requirements:

  • OS X 10.11+
  • Xcode 8+
  • Command Line Tools for Xcode
  • Boost 1.56.0+ (header-only)

Please install Boost into

. (eg.

Step 1: Getting source code

Download the source to master.tar.gz in the current directory, this can be re-executed to restart a cancelled download.

curl -OLC -

Extract the master.tar.gz file to "Karabiner-master" and delete the tar.gz file

tar -xvzf master.tar.gz && rm master.tar.gz

Step 2: Building a package

cd Karabiner-master


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

Note: The build may fail if you have changed any environment variables or if you have modified scripts in the

locations. Use a clean environment (new account) if this is the case.

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