Beauty Diagram
Use case

Engineering documentation diagrams

Create cleaner Mermaid and PlantUML diagrams for READMEs, architecture notes, RFCs, and source-controlled engineering docs.

The goal is not to rewrite the diagram from scratch, but to make the source easier to present and reuse.

At a glance

A scenario page for engineering teams that keep diagrams close to code and need them to stay readable in docs.

Who this is forBest diagram typesWorkflow
Rendered proof
Engineering doc flow from source change to reviewed diagram.
Theme · Modern
Open this diagram in editor
No Yes ↺ Open pullrequest Update Mermaiddiagram Docs previewreadable? Ship docs update Beautify andadjust labels
View Mermaid sourcePlain-text diagram syntax — copy or edit directly.
diagram.mmd
1flowchart TD
2  A[Open pull request] --> B[Update Mermaid diagram]
3  B --> C{Docs preview readable?}
4  C -- Yes --> D[Ship docs update]
5  C -- No --> E[Beautify and adjust labels]
6  E --> C

Who this is for

Engineering teams that already write docs in Markdown, Notion, GitHub, or internal knowledge bases and want diagrams that can be reviewed like source.

  • README and runbook diagrams
  • Architecture notes and RFCs
  • Source-controlled Mermaid and PlantUML snippets

Best diagram types

Flowcharts explain decision paths, sequence diagrams explain service calls, ER diagrams explain data shape, and class or state diagrams clarify structure and lifecycle.

Workflow

Start from Mermaid or PlantUML source, beautify the output, then export SVG for docs or save the diagram in Diagram Hub so future edits keep the same source-driven workflow.