Improve and polish – JavaScript Coding, Programming Review

This is incredibly decent. I want you to further improve the app, and polish it. It would be cool if you had some servers, so people could share code, rate, and even use third party applications. I would also like it if you could make it to where we can make geometric shapes like lines, ellipses, rectangles, etc. You could put an ad at the top or bottom of the screen if you need money. What if people could make accounts. Guests can download and make code, but people with accounts could upload code.
Review by Spicy Cat B0i on JavaScript Coding, Programming.