Remapping keyboard keys is a common practice, especially if you need to write text in various languages that are using special characters, or if you want to create personalized keyboard shortcuts.

Unobtrusive key remapping solution that works in the background
Karabiner-Elements is a minimalistic app that resides in your status bar and enables you to extensively customize the key’s effect. Note that you must start by adding the app to the list of utilities that can control your Mac (open the System Preferences window and navigate to the Security&Privacy tab).

The application enables you to quickly access the Preferences window where you can establish the remapping rules, or the EventViewer window designed to help you check if certain settings are effective in specific applications.

Effortlessly remap your keyboard behavior and adjust the key repeat delay
For your convenience, Karabiner-Elements comes with a collection of predefined functions that can adjust the behavior of your keyboard without requiring any configuration: simply open the Preferences window and, in the Change Key panel, enable the modification you want to make by checking the attached box.

Noteworthy is that the app allows you to define multiple profiles, and that you can quickly switch between them via the app’s status bar. You may even create activation keyboard shortcuts for each profile.

Uncomplicated solution for remapping your keyboard and adjusting its behavior to match your own needs
Karabiner-Elements enables you to remap your keyboard by applying various predefined settings, but also offers you the possibility to make your own settings, by manually editing the private.xml document.

More importantly, the application also includes tools for adjusting the key repeat interval for each function and comes with an EventViewer that can help you verify if the settings work properly.

What's New:

Vresion 15.0 

Breaking changes

• macOS 11 and macOS 12 are no longer supported. The background service management method has been changed to a new method compatible with macOS 13 and later. Therefore, permission needs to be granted for the background service to run.
• The method to enable the Multitouch Extension has changed.

Important Notes

• A unique random ID called karabiner_machine_identifier is now generated during installation. This ID is used for machine-specific settings and may be included in the karabiner.json file.

New Features

• Added the ability to disable Complex Modifications rules.
• Added the ability to duplicate and reorder profiles.
• Added the ability to restart Karabiner-Elements from the menu.
• Added the ability to reset device settings that are not currently connected.

Improvements

• Improved "{device} is ignored temporarily until {key_code} is pressed again" message for to make it more understandable. (Thanks to @adamnovak)
• Added "Enable Karabiner Notification Window" configuration, which allows you to hide the notification window by turning off this setting. (Thanks to @jwodnicki)
• Support al_consumer_control_configuration key, used as the Music key. (Thanks to @kambala-decapitator)
• Improved behaviour when using the gamepad stick as a pointing device.
• Improved to_if_alone behavior to use the modifier flags of the time the key is pressed, when sending events.
• Added {"type": "unset"} option to set_variable.
• Integrated karabiner_observer functions into karabiner_grabber, and then karabiner_observer has been removed. The number of background processes has been reduced, resolving performance issues caused by inter-process communication that were occurring in some environments.
• A custom JSON formatter has been introduced to save JSON in a more compact format.
• The process for saving the configuration file has been optimized so that settings that have not been changed from their default values are not included in karabiner.json.
• Internal changes: Improved the interface of libkrbn to minimize the use of unsafe pointers in Swift.

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