PGF and TikZ is described as 'PGF/TikZ is a tandem of languages for producing vector graphics from a geometric/algebraic description. PGF is a lower-level language, while TikZ is a set of higher-level macros that use PGF. The top-level PGF and TikZ commands are invoked as TeX macros, but in contrast with' and is a Vector Graphic app in the photos & graphics category. There are more than 10 alternatives to PGF and TikZ for a variety of platforms, including Windows, Linux, Mac, Web-based and BSD apps. The best PGF and TikZ alternative is Inkscape, which is both free and Open Source. Other great apps like PGF and TikZ are LibreOffice - Draw, Dia, Lucidchart and Graphviz.