How can I make my free micro SaaS better?

I needed a tool to convert a list of names into an array, that I could then include to my source code. I also needed that data filtered with all duplicates removed and the data sorted, so I created a simple, free micro SaaS that allows me to do just this: https://arraycat.com

All is done in the client's browser, so there are no privacy concerns, either.

The tool basically does everything I needed it to do. But are there any things I should still improve?