"Will run on the internet" could mean that you are talking about an "Applet".
Applets are executed within your web browser. To develop an applet with a database back-end, you have to develop the applet as a "front-end" which includes all presentation layer activities. The database is the back-end which includes all activities to store data changes persistently and to query data and hand it over to the front-end.
Jabaco is a design tool for applets and for stand-alone applications to be run outside of a browser.
Such a stand-alone application could also access data via the internet by establishing a network connection to some central database.
Microsoft Access is a database which can be accessed by using ODBC, a Microsoft protocol. In most cases, Access is running on the user PC and not on some remote server. To design an internet ready applications, you might want to use a database which is more network oriented than MS Access. Suitable examples include MySQL, Oracle, MS SQL Server, H2, ... to name a few. The typical database protocol is jdbc.
Depending on the importance of the data involved, you should spend some thoughts on security. Somehow, the front-end client has to convince the back-end server that it is actually entitled to access the data. This can be done by passing username and password. It might be necessary to use an encrypted communication between your clients and your server to prevent hackers from spying.
From the above mentioned topics it should have become clear that development of internet applications is an involved task which typically requires a lot of reading, training and self-study. Jabaco is a tool to experiment with the various techniques - and it comes for free!
Happy learning and experimenting
A1880