PlantUML

Create diagrams using a simple, human-readable textual description language that is easy to learn and modify.

Generate sequence, use case, class, object, activity, component, deployment, state, and timing diagrams.

Create diagrams such as JSON, YAML, EBNF, regex, network, wireframes, Archimate, SDL, Gantt, mind maps, ER diagrams, charts, and file trees.

Use different layout engines including Graphviz, Smetana, VizJs, ELK, and specialized engines for sequence diagrams to optimize diagram layout.

Export diagrams as PNG, SVG, LaTeX, EPS, or ASCII art (for sequence diagrams), supporting diverse use cases.

Edit and render diagrams instantly in the browser using a JavaScript rendering engine without server dependencies.

Apply built-in or custom themes to personalize diagram appearance with colors, styles, and icons.

Integrate PlantUML with other tools and platforms, including a browser extension for rendering diagrams directly inside GitHub.