Beauty Diagram
Beauty Diagram is an online editor and beautifier for Mermaid, PlantUML, and draw.io diagrams.
Our verdict
Who it's for
Transform your Mermaid, PlantUML, and draw.io diagrams into presentation-grade visuals with one click.
Who should look elsewhere
Advanced features like draw.io import and 4x PNG export are restricted to the Pro plan.
Pros
- +Transforms basic diagrams into professional, presentation-ready visuals.
- +Automates layout and styling, saving significant design time.
- +Supports popular text-based diagramming languages (Mermaid, PlantUML).
- +Offers advanced visual features like animated SVGs and custom typography.
- +Allows color customization directly in the editor without altering source code.
Cons
- −Advanced features like draw.io import and 4x PNG export are restricted to the Pro plan.
- −Relies on existing diagram code, not a visual diagram builder from scratch.
Key features
- ✓Mermaid editor
- ✓PlantUML editor
- ✓draw.io diagram beautifier
- ✓Live preview of diagrams
- ✓One-click layout beautification
- ✓Orthogonal routing for flowcharts
- ✓Multiple thematic styles (modern, atlas, obsidian, atelier)
- ✓Presentation-grade typography (Geist font, OpenType ligatures)
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Free | — | month | occasional use |
Integrations
NotionGitHub