The good thing about GitMind is all the essential templates and elements are readily available. It is a web-based application that is supported by major web-browsers. This is a diagram maker that you can use for free. The first tool that we can recommend is GitMind. Read on to learn more information about these tools. With that being said, we reviewed 10 of the best tools that you can use. However, there are many factors that should be considered in choosing a diagram maker to use. These tools dedicate to make diagram creation easier for the user. Due to their various applications, many diagram creators have appeared online. It is primarily used for educational and business presentations. Diagrams are one of the most used visual aids across the globe.