Gleek.io

Gleek is a text-based tool that allows creating diagrams without having to drag and drop shapes. By using only the keyboard, software development teams easily map out processes. Because the tool is so intuitive and quick, it benefits teams who need to visualize during brainstorming sessions. Gleek lets them illustrate processes in real-time. It also allows teams to diagram fast by using easy-to-understand syntax. Gleek supports various diagram types, such as UML diagrams like class and sequence, as well as flowcharts, entity-relationship diagrams, and much more.