I have been looking for something like this for ever. Even tried to make my own version, but manipulating a canvas is not easy to make user friendly. Maybe you

I have been looking for something like this for ever. Even tried to make my own version, but manipulating a canvas is not easy to make user friendly. Maybe you'll enjoy this one as well. If you know anything like this, that also have a few more options like making buttons etc.. do tell :)