Installation:

In your Blender workspace click on edit -> preferences

Navigate to 'addons'

On the top right, click 'install'

Navigate to the CleanKeys zip file

Activate the addon

Enjoy :D

Function:

Clean Transformation Channels:

Pressing the 'Clean Keys' button will clear any unused transformation channels for the active object. For example, using autokey will add a key to all channels even if they result in no transformation. This addon will remove those null channels in one click.

*PLEASE NOTE* I am not an experienced developer, please expect bugs