PlantUML is a program allowing to draw UML diagrams, using a simple human readable text description.

PlantUML supports the following UML diagrams: - sequence diagram - use case diagram - class diagram - activity diagram - component diagram - state diagram - object diagram - deployment diagram - timing diagram

The following non-UML diagrams are also supported: - wireframe graphical interface (Salt) - Archimate diagram - Specification and Description Language (SDL) - Ditaa diagram - Gantt diagram - mathematics with AsciiMath or JLaTeXMath notation

Output images can be generated in PNG, in SVG or LaTeX format. PlantUML also supports generation of ASCII art diagrams (only for sequence diagrams).