RubiStar is a great tool when it comes to making rubrics. I am particularly fond of it because it doesn’t even require you to set up an account or login to use it. Sure, there are benefits to doing such, like being able to permanently save your rubric, but even not logged in you can save the rubric as a pdf.
I find this tool incredibly easy to use, and love that they have pre-worded categories and rubric types. Even better than this though, is that if something doesn’t quite fit you can easily add to or change it. In fact it is possible to word every category for yourself. No matter which route you take in the end you’ll be left with a professional looking rubric which suits your needs.
A final benefit of RubiStar worth mentioning is that it is possible to search rubrics made by others as well. The perfect rubric for your assignment may already exist, or it could assist you in finding the proper wording or point values for your task at hand.