I am working on a web app that is a DM's aid for D&D 5e. It's based on a Python program I already use. With the Python program I just type in the die roll, but for the web app I wanted a GUI for dice rolling. So I wrote one and it is on my website. So if you have some time, please check it out and give me some feedback. I'm mainly interested in feedback on usage, but if you find any bugs definitely let me know. And I know the CSS needs work.