This application produces small wav sounds on every keystroke just like an iPhone keyboard.

For Mac OS, I have already included Clickey.app in /Bundled Applications.

Will require system permissions when you'll run it for the first time.

Using Command Line : (Assuming you have java installed)

git clone https://github.com/piyush0/Clickey

cd Clickey/"Bundled Applications"

java -jar Clickey.jar

jnativehook by kwhat