LLJoy

LLJoy is a thoroughly designed piece of software that allows you to emulate the input of a gamepad keyboard and a mouse with the help of your joystick, making ideal in those annoying situations where various games don't feature support for the aforementioned controller.
There's no need to detail the app's typical installation process however, we will point out that .NET Framework 4.0 or later is required for the app to properly install.

Clear-cut and novice-accessible UI

Subsequently, the application makes its presence known by smoothly integrating with your computer's taskbar.
LLJoy's user interface is quite intuitive and uncluttered, and it is clearly geared towards functionality more than anything else. The main window is neatly divided into two main sections. On the left, you have the Profile structure tree, and on the right, you can edit all the aspects of your profiles, as well as configure the key emulation functions.

Capable of handling plethora of emulation operations

With time, you will discover just how capable this little app really is. It is worth mentioning that LLJoy can convert literally all keyboard and mouse operations. Everything from time-related actions, tilted actions, combined actions, shift, and click actions can all be mapped and converted, if you only have the necessary patience.
Therefore, we must admit that using this application does require a bit of getting used to and, as mentioned before, a bit of patience. That said, it might be a good idea to firstly read the app's extremely well-documented online manual.

Emulate keyboard and mouse operations by using your joystick with the help of this app

As an ending note, if joysticks or other types of controllers are your preferred input method while gaming then there's a good change you will find LLJoy to be of great worth.
This little utility ticks all the right boxes: it's easy to install, light on your computer's resources, pretty much straightforward when it comes to functionality and, probably most important, very well-documented.