Graphviz

Classic graph layout from DOT files.

Visit official site
Official sitegraphviz.org
Price tierOpen source
PlatformsLocal
LicenseEPL-1.0
Since1991
OriginUnited States
StatusActive
CategoryDiagrams

Graphviz is a Diagrams tool from United States, first released in 1991. Classic graph layout from DOT files. Status: Active.

Graphviz is Open source. Confirm the current plan on the official site before you quote a number.

What holds up: Graphviz runs on Local, so a workflow does not have to stay inside a hosted editor. Graphviz has been around since 1991, so examples, habits, and file formats already exist.

What does not: Graphviz is proprietary. If the vendor shuts the account, you do not have a license to run the service yourself.

The closest listed alternative is Mermaid: Diagrams as text: flowcharts, sequences, ER.

Other tools compared in the same sitting: PlantUML (2009, Open source): Text diagrams, especially UML. Excalidraw (2020, Open source): Hand-drawn style whiteboard.

Where to compare

8 alternatives to Graphviz. Open that page to compare them.

Catalogued 2026-11-09.