Abstract: QuizStar, accessible at http://quizstar.4teacher.org, is an online free tool for managing classes and test. Teacher can provide feedback on the test and student can review their test after completed it. Multiple languages quiz maker, free access, and free storage are three main aspects from this tool. The purpose of this paper/presentation is to introduce conference participants with potential features and the usability of QuizStar. I will guide participants on setting up QuizStar account and learning some basic features of this tool. Furthermore, presentation covers my personal evaluation about usability of QuizStar.