Hosting online

Hi all,

Iv made a small CRUD app with basic UI that I plan to use as a hobby app for me and my friends to track scores and game results.

I have made the app intelliJ using JavaFX and Scenebuilder.

I made the backend dB already using MySQL and the whole app works a treat. But I am confused about how to host my app online exactly how it is working now.

I know I would need migrate the dB to an online dB and pay to run the app from somewhere but there's so many diff options online and I'm honestly pickled.

So my question is, Is there a basic way to host a java app online, even for testing purposes? If I am too vague please ask and I'll elaborate.