Voronoi diagrams require a computational step before showing the results. An efficient tool therefore would process the computation in real time to show a direct result to the user. Many commercial and free applications exist. A particularly practical type of tools are the web based ones. Web based tool are easier to access and reference. Also, SVG being a natively supported format by the web, allows at the same time an efficient (GPU accelerated) rendering and is a standard format supported by multiple CAD tools (e.g. Autodesk Fusion360). Although voronoi is a very old concept, the currently available tools do lack multiple mathematical functions that could add values to these programs. Examples could be usage of a different cost distance than Euclidean, and mainly 3d voronoi algorithms. Although not being software tools themselves, the first reference explains the concept of 3d voronoi and the second is a 3d voronoi library.