DiagramPreview
AI betaAIDeepSeekLocal fallbackPlantUML

AI PlantUML Generator

Describe a sequence, component, class, activity, use case, or state diagram and generate editable PlantUML source.

Exemples
Diagram preview
Describe a sequence, component, class, activity, use case, or state diagram and generate editable PlantUML source.

Continue with a related tool

Move this output into a nearby workflow for preview, conversion, or debugging.

Comment utiliser

  1. 1Describe the target diagram in plain language.
  2. 2Choose a diagram type and generate code with AI.
  3. 3Review the output, edit it if needed, then export or copy the source.

Cas d’usage

PlantUML sequence diagramsComponent diagramsActivity and state diagrams

FAQ

Which AI provider is used?

The server calls DeepSeek directly and uses a local template fallback when DeepSeek is unavailable or not configured.

Are API keys exposed to the browser?

No. API keys are read only on the server through environment variables.

Generate PlantUML diagrams from natural language with DeepSeek.

Describe a sequence, component, class, activity, use case, or state diagram and generate editable PlantUML source.

The server calls DeepSeek directly and uses a local template fallback when DeepSeek is unavailable or not configured.

Demo: generate PlantUML for a payment workflow

AI PlantUML is useful when teams already store diagrams as text. The prompt should ask for a specific PlantUML diagram type and include the messages or components that must appear.

  • Ask for sequence, component, class, or activity explicitly.
  • Mention failure branches that need alt or if blocks.
  • Preview the generated PlantUML before committing it to docs.
Generate a PlantUML sequence diagram for checkout payment. Include Browser, API, PaymentProvider, OrderDB. Show authorize success and card_declined failure path.

Review checklist: keep generated PlantUML maintainable

PlantUML can become hard to maintain when AI adds too much styling or invents abstractions. Keep the first version plain and focused, then add style once the logic is correct.

  • Prefer readable participant names over clever aliases.
  • Avoid large skinparam blocks in the first draft.
  • Commit the source text beside the document that uses the rendered image.
@startuml
participant API
participant PaymentProvider
API -> PaymentProvider: authorize
PaymentProvider --> API: approved
@enduml

Checklist de revue pour AI PlantUML Generator

Utilisez AI PlantUML Generator pour inspecter visuellement une source avant documentation, note de PR, post-mortem ou transfert. Generate PlantUML diagrams from natural language with DeepSeek.

Avant export, vérifiez la lisibilité, les relations, les données sensibles et la cohérence après modification.

Limites et dépannage

Si l'aperçu échoue, réduisez l'entrée au plus petit exemple complet, validez la syntaxe puis réajoutez les sections.

Considérez l'aperçu comme une surface de revue, pas comme une source de vérité. Les résultats critiques doivent être validés.

Exemples à tester

  • Sequence: Create a PlantUML sequence diagram for a user exporting a diagram as PNG: browser requests export, app renders SVG, conversion service creates PNG, and browser downloads the file.
  • Component: Create a PlantUML component diagram for DiagramPreview with web app, renderer modules, AI API route, DeepSeek provider, local fallback provider, and export utilities.
  • Activity: Create a PlantUML activity diagram for validating pasted diagram code, rendering a preview, showing errors, and exporting if successful.

Maturité de l'outil

AI beta

Beta assistée par AI

Cet outil génère une source modifiable avec AI. Relisez, prévisualisez localement et ajustez avant publication.

Le libellé indique si l'outil convient surtout à l'export stable, au débogage, à l'analyse rapide ou à la génération AI.