vitepress-plugin-plantuml

Render PlantUML diagrams in your VitePress site.

在 VitePress 中渲染 PlantUML 图表。

Usage

With Vitepress-tuck

Installation:

# npm
npm install -D vitepress-tuck vitepress-plugin-plantuml
# pnpm
pnpm add -D vitepress-tuck vitepress-plugin-plantuml
# yarn
yarn add -D vitepress-tuck vitepress-plugin-plantuml

Configuration:

// .vitepress/config.ts
import plantuml from 'vitepress-plugin-plantuml'
import { defineConfig } from 'vitepress-tuck'

export default defineConfig({
  plugins: [plantuml()],
})

// .vitepress/theme/index.ts
import type { Theme } from 'vitepress'
import enhanceApp from 'virtual:enhance-app'
import DefaultTheme from 'vitepress/theme'

export default {
  extends: DefaultTheme,
  enhanceApp(ctx) {
    enhanceApp(ctx)
  },
} satisfies Theme

With Vitepress

Installation:

# npm
npm install -D vitepress-plugin-plantuml
# pnpm
pnpm add -D vitepress-plugin-plantuml
# yarn
yarn add -D vitepress-plugin-plantuml

Configuration:

// .vitepress/config.ts
import { defineConfig } from 'vitepress'
import { plantumlMarkdownPlugin, plantumlVitePlugin } from 'vitepress-plugin-plantuml'

export default defineConfig({
  markdown: {
    config: (md) => {
      md.use(plantumlMarkdownPlugin)
    },
  },
  vite: {
    plugins: [plantumlVitePlugin()],
  },
})

// .vitepress/theme/index.ts
import type { Theme } from 'vitepress'
import { enhanceAppWithPlantuml } from 'vitepress-plugin-plantuml/client'
import DefaultTheme from 'vitepress/theme'

export default {
  extends: DefaultTheme,
  enhanceApp(ctx) {
    enhanceAppWithPlantuml(ctx)
  },
} satisfies Theme

Syntax

Use plantuml code blocks to render diagrams.

```plantuml
@startuml
Alice -> Bob: Authentication Request
Bob --> Alice: Authentication Response

Alice -> Bob: Another authentication Request
Alice <-- Bob: Another authentication Response
@enduml
```

Output Format

You can specify the output format (svg or png) for individual diagrams:

```plantuml png
@startuml
class Example {
  +attribute: string
  +method(): void
}
@enduml
```

Or set a global default when configuring the plugin:

plantuml('png') // default is 'svg'

Supported formats: svg, png

Features

• Dark / Light mode — Automatically generates both dark and light variants of diagrams, matching the current VitePress theme.
• Chart / Source tabs — Toggle between the rendered diagram and its source code.
• Fullscreen mode — Click the fullscreen button to view the diagram in a full-screen overlay.
• Download — Download the current diagram as an image file.
• Multi-language — Built-in support for English, Chinese, Japanese, Korean, Spanish, French, Russian, German, and Portuguese.
• SVG optimization — SVGs are automatically optimized via SVGO for cleaner output.
• Caching — Rendered diagrams are cached to disk for fast rebuilds.