Developed for macOS by Takayama Fumihiko, Karabiner-Elements is a utility that provides users the means to remap their keyboard and set up various settings like special characters, shortcuts, or delay time.
The installation process is easy to complete and lasts under one minute. Once you start the application, you discover a simple GUI, with a black and grey theme and rich toolbar options. There are no extra skin themes and thanks to its well-delimited sections, it's quite easy to navigate through menu tabs.
When it comes to its capabilities, Karabiner-Elements can help users to configure key mappings from GUI by accessing the Modifications tab. You don't need advanced computer skills to adjust key mappings, so it should be an easy task for any type of user.
Furthermore, there are multiple predefined rules integrated into the program. Some of them are Mouse keys, Vi key bindings, Diamond cursor, Emacs key bindings, or Unintended command-q. An important aspect is that users can import predefined rules from the Internet or just create personalized rules.
To summarize, Karabiner-Elements is a simple software tool for making various adjustments to the keyboard settings. It's free to use and consumes a small number of system resources, but it can be sluggish sometimes. Still, you should try it and have fun with its features.