Entity Relation Diagrams generation tool
JavaScript client-side editor for general diagramming & whiteboarding
Display dynamic, automatically organised, customizable network views
Graphical language server platform for building web-based diagram
A set of trafficlight shapes to use in your diagrams in DIA
E-XD++ Diagram Control for C/C++, .NET, the professional Diagram.
power system configuration and simulation, c/c++ and .NET
an Open Source BPMN 2.0 / DMN 1.1 Modeler
Ladder editor and debugger
Open source PLC IEC61131 Software Componet with c++ source codes
show and edit eulumdat files
An editor for the specification of Graphol ontologies
Easy Tools of PDF, Image, File, Network, Data, and Medias
Circuit diagram editor with device editor
E-XD++ UML Control for C/C++, C# and .NET, it can be used within Delph
Analog \ digital circuit design and simulation source code
small console GML or graphviz DOT graph viewer
Qt Visual Graph Editor
Digital timing diagram rendering engine
Database administration,view,edit,migrate,entity relationship diagram
A modern note taking app based on GIT
PUed - PlantUML Editor