Prof. G. Dalgish
Versatile free application to teach and learn Kellogg-Reed sentence diagrams.
It helps you make electronic circuit diagrams and export them as images.
Create visual representation of processes, organizations, and mind maps.
Creates call flows & UML sequence diagrams from textual inputs.
Create diagrams in a manual mode or using free templates.
Integrate it to other applications as an activeX control to create diagrams.
Umbrello UML Modeller is a Unified Modelling Language (UML) diagram program.
TriPlot is a trilinear-diagram plotting program for researchers and students.
G R Freeth
The PolarPlot is a program for plotting a polar diagram of an antenna.
Edraw Network Diagram is a program designed for network drawings.
Todd A. Thompson Software
This is a directional rose diagram plotting program for researchers and students.
Festo Didactic GmbH & Co. KG
FluidSIM 5 is a circuit diagram design and simulation program.
A powerful yet easy-to-use UML diagram drawing program.