# PlantUML

**PlantUML** is versatile in generating UML diagrams (and other types) from a simple text description, widely used in software development for documenting architecture and processes.

[Learn more about PlantUML](https://plantuml.com/en/component-diagram)

## [#](#examples)Examples

### [#](#sequence-diagram)Sequence diagram

![Sequence Diagram](https://help.gocapable.com/images/att1072333566.svg)

### [#](#use-case-diagram)Use case diagram

![Use Case Diagram](https://help.gocapable.com/images/att1073054349.svg)

### [#](#class-diagram)Class diagram

![Class Diagram](https://help.gocapable.com/images/att1072857612.svg)

### [#](#object-diagram)Object diagram

![Object Diagram](https://help.gocapable.com/images/att1072431832.svg)

## [#](#editor)Editor

![image-20241022-140408.png](https://help.gocapable.com/images/f0656d07-425d-44e7-b466-4be68dab3470.webp)

PlantUML Editor

![Screenshot 2024-10-22 at 15.03.16.png](https://help.gocapable.com/images/c9730e5d-af53-4325-91a8-6c02d0dd11f9.webp)

PlantUML Templates

## [#](#examples-1)Examples

### [#](#sequence-diagram-1)Sequence diagram

![Screenshot 2026-02-20 at 08.09.09.png](https://help.gocapable.com/images/b8c360c8-8faf-4d7a-ac82-cb707fab2b5c.webp)

```
@startuml
skin rose
participant User

User -> A: DoWork
activate A #FFBBBB

A -> A: Internal call
activate A #DarkSalmon

A -> B: << createRequest >>
activate B

B --> A: RequestCreated
deactivate B
deactivate A
A -> User: Done
deactivate A
@enduml
```

### [#](#use-case-diagram-1)Use case diagram

![Screenshot 2026-02-20 at 08.09.51.png](https://help.gocapable.com/images/74002eb9-3e11-418a-9648-8f4b601e2ebb.webp)

```
@startuml
skin rose

:Main Admin: as Admin
(Use the application) as (Use)

User -> (Start)
User --> (Use)

Admin ---> (Use)

note right of Admin : This is an example.

note right of (Use)
  A note can also
  be on several lines
end note

note "This note is connected to several objects." as N2
(Start) .. N2
N2 .. (Use)
@enduml
```

### [#](#class-diagram-1)Class diagram

![Screenshot 2026-02-20 at 08.10.41.png](https://help.gocapable.com/images/1b65c014-0479-4d5e-9a3d-5917d55eb7a8.webp)

```
@startuml
skin rose

abstract class AbstractList
abstract AbstractCollection
interface List
interface Collection

List <|-- AbstractList
Collection <|-- AbstractCollection

Collection <|- List
AbstractCollection <|- AbstractList
AbstractList <|-- ArrayList

class ArrayList {
  Object[] elementData
  size()
}

enum TimeUnit {
  DAYS
  HOURS
  MINUTES
}

annotation SuppressWarnings

annotation Annotation {
  annotation with members
  String foo()
  String bar()
}

@enduml
```

### [#](#object-diagram-1)Object diagram

![Screenshot 2026-02-20 at 08.11.21.png](https://help.gocapable.com/images/46fbcba3-c508-47fc-85ad-411223ae0121.webp)

```
@startuml
skin rose

object London
object Washington
object Berlin
object NewYork

map CapitalCity {
 UK *-> London
 USA *--> Washington
 Germany *---> Berlin
}

NewYork --> CapitalCity::USA
@enduml
```