Diagram

Diagram language.

Diagram source code (URL-encoded).

mermaid: flowchart: graph TD\n A[Start] --> B{OK?}\n B -->|yes| C[End]\n B -->|no| D[Error]

mermaid: sequence: sequenceDiagram\n Client->>API: GET /v1/diagram\n API-->>Client: 200 SVG

mermaid: ER: erDiagram\n USER ||--o{ ORDER : places\n ORDER ||--|{ ITEM : contains

graphviz: digraph G { rankdir=LR; A -> B -> C }

plantuml: @startuml\nA -> B: request\nB --> A: response\n@enduml

d2: Client -> API: POST /v1/diagram\nAPI -> SVG

svgbob: +-------+ +-------+\n| Box A |-->| Box B |\n+-------+ +-------+

nomnoml: [Client] -> [API]\n[API] -> [Handler]

Output format. Default: "svg".

Set share: true to persist the diagram and receive a JSON response with render_url and view_url instead of the image. render_url is a public direct image URL (no auth required, supports ?format= override). view_url is a shareable HTML page embeddable as an iframe. Free plan: expires after 3 days. Paid plan: expires after 6 months.