MineCraft Server Creator
A tool that makes creating Minecraft servers much easier and faster.
The version of the client and the server should be the same when connecting to a server. Though there are exceptions. If your server is having performance-related issues, then consider reading this.
The maximum number of people that should be able to join the server.
How much RAM to allocate to the server (measured in megabytes). This depends on the hardware specifications of your system. Read more here.
In order to make your server available for everyone to join, watch this video after you have downloaded and run your server for the first time.
Whether or not you accept Mojang's EULA.
Note: In order to run a Minecraft Java Edition server, you need to have the Java runtime installed on your computer. If you don't have it, you can download the installer from here.