YWorks

yEd is a powerful desktop application that can be used to quickly and effectively generate high-quality diagrams. Create diagrams manually, or import your external data for analysis. Our automatic layout algorithms arrange even large data sets with just the press of a button.

yEd is freely available and runs on all major platforms: Windows, Unix/Linux, and Mac OS X.

Link to website: https://www.yworks.com/products/yed

• Up to date information about the software in this list, which is mostly free to use, can be obtained from this link