Guides
10 guides on plantuml. Practical writing from the team building Atlas, useful whether or not you buy anything.
PlantUML and Graphviz are both text-to-diagram tools, and PlantUML even uses Graphviz under the hood: yet they serve different purposes. This guide clarifies when to reach for each.
A state diagram captures how an object moves between states over its lifetime. PlantUML writes one as states and transitions, with support for guards, composite states, and concurrency.
A component diagram shows the high-level building blocks of a system and how they plug together through interfaces. PlantUML makes one from components, interfaces, and connectors written as text.
An activity diagram is UML's flowchart: a way to model a workflow with branches, loops, and parallel paths. PlantUML's modern syntax makes writing one surprisingly readable.
A use case diagram answers a simple question: who can do what with this system. PlantUML makes one from a few lines of actors, use cases, and the relationships between them.
A class diagram captures the static structure of an object-oriented design. PlantUML lets you write one as text, with precise control over members, visibility, and every relationship type.
Sequence diagrams are where PlantUML shines, because it lays them out itself rather than deferring to Graphviz. This tutorial takes you from a two-line diagram to loops, alternatives, and activation bars.
PlantUML lets you write a diagram as a few lines of text and get a rendered UML diagram back. This guide covers the syntax, the diagram types, and how to make it part of a workflow that stays current.
PlantUML, Mermaid, and draw.io are three of the most popular ways developers make diagrams. Two are code-based and one is visual. Here is a fair look at when each fits.
Mermaid and PlantUML are the two heavyweights of diagram-as-code. Here is an honest comparison to help you pick the right one.
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