I made this tool because on more than one occasion, I would be halfway on my way to a DnD game and realize my die set is at home, on the counter, where I left it so I wouldn't forget it, again.
So I'd end up bumming off someone else's D20's and feel ashamed of it.
But also because, it's more accessible. When I was wheelchair bound and rolled my dice off the table (as expected at least a few times per session) I couldn't get up and pick them back up. I had to rely on others, so another level of shame.
There is no easy to use online die roller that looks nice and is free. You get two of the three at best.
So I made this tool. It's free, easy enough to use on desktop and mobile devices, and isn't just a static html page that spits out a random number. You can at LEAST feel like you have your die set with you, somewhat.
Please feel free to contact me with further suggestions or improvements, bug fixes, whatever.