| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 1 |
| Spec score · Graph Visualization Tools Software | 8.2 (#6) | 8.0 (#8) |
| Customization | Attributes can customize the layout of graphs, nodes, edges, and clusters. | The documentation says users can customize how graph attributes map to visual properties through its styles and primitives system. |
| Integrations | The external resources page lists editor plugins and language bindings, including Python, Go, Java, Rust, and others. | The quickstart documents installation through a CDN or a package manager, and the browser bundle page describes a standalone UMD bundle. |
| License | Current Graphviz software versions are licensed as open source under the Eclipse Public License. | The project is developed under the MIT License. |
| Purpose | Graphviz is open-source graph visualization software for representing structural information as diagrams of graphs and networks. | Sigma.js is a WebGL-powered JavaScript library for interactive graph visualization in the browser. |
| Support | Users can ask questions and discuss Graphviz in the project forum, and report or view bugs on its issue tracker. | The project links to documentation, Mastodon, GitHub, and Stack Overflow as resources. |
| Use cases | The project identifies networking, bioinformatics, software engineering, database and web design, and machine learning as application areas for graph visualization. | The homepage lists uses including graph exploration, network analysis, security analysis, and codebase visualization. |