yEd Graph Editor
Free
yEd is a free general-purpose diagramming program with a multi-document interface.
PlantUML
Open Source
PlantUML is an open-source tool allowing users to create UML diagrams from a plain text language.
UMLet
Open Source
UMLet is an open-source Java-based UML tool designed for teaching the Unified Modeling Language and for quickly creating UML diagrams.
Diagrammix
Commercial
Diagrammix is a tool for efficiently building attractive diagrams and flowcharts.
OmniGraffle
Commercial
OmniGraffle is a diagramming and digital illustration application for macOS and iOS.
Gephi
Open Source
Gephi is the leading visualization and exploration software for all kinds of graphs and networks.
LaTeXDraw
Open Source
LaTeXDraw is a free and opensource graphical PSTricks editor or generator for latex.
Tom Sawyer Software
Commercial
Tom Sawyer Software is a data visualization and social network analysis application.
Compare Graphviz with alternatives
Compare yEd Graph Editor and Graphviz and decide which is most suitable for you.
Compare OmniGraffle and Graphviz and decide which is most suitable for you.
Compare Diagrammix and Graphviz and decide which is most suitable for you.
Compare Tom Sawyer Software and Graphviz and decide which is most suitable for you.