Beauty Diagram - Auto-Beautifies Mermaid and PlantUML
Turn your diagram source into beautiful, publication-ready visuals instantly.
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What is Beauty Diagram?
Beauty Diagram is a Mermaid, PlantUML, and draw.io editor that automatically beautifies diagrams with professional styling, intelligent re-layout, and orthogonal routing. Paste your diagram source code, preview it live, and export beautiful SVG or PNG renders with one click. It's designed for developers, technical writers, and teams who want publication-ready diagrams without manual tweaking.
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Key Features of Beauty Diagram
- Live editor for Mermaid, PlantUML, and draw.io
- Automatic re-layout with orthogonal routing
- 9 swappable themes (modern, atelier, atlas, obsidian, and more)
- Editorial-grade typography with Geist font and OpenType ligatures
- AI-powered diagram generation and refinement from plain English
- 5 animated SVG styles (subtle, lightning, laser, charge, pulse)
- 14 diagram types (flowchart, sequence, Gantt, mindmap, activity, swimlane, class, state, ER, pie, Git graph, C4, journey, timeline)
- Export as SVG or PNG
- Embeddable image URLs for GitHub, Notion, Medium
- Available as plugins: Chrome, Obsidian, VS Code, CLI
Who Should Use Beauty Diagram?
Create publication-ready diagrams for README files and documentation
Generate flowcharts and sequence diagrams for technical presentations
Design system architecture diagrams with professional styling
Visualize project timelines and Gantt charts
Create entity relationship diagrams for database design
Generate mind maps and journey diagrams
Build animated sequence diagrams to clarify flow direction
Beauty Diagram: Pros & Cons
✓Pros
- Automatic beautification without manual layout adjustments
- Supports multiple diagram formats (Mermaid, PlantUML, draw.io) in one tool
- AI-assisted diagram generation and refinement
- Multiple professional themes available
- Embeddable diagrams with live URL rendering
- Available across multiple platforms (web, Chrome, Obsidian, VS Code, CLI)
- Orthogonal routing eliminates diagonal arrows crossing nodes
- Animated SVG export options
Frequently Asked Questions about Beauty Diagram
What diagram formats does Beauty Diagram support?
Beauty Diagram supports Mermaid, PlantUML, and draw.io diagram formats.
Can I use Beauty Diagram without writing code?
Yes, you can use the AI generate feature to describe what you want in plain English and it will draft the diagram source for you.
How do I embed a Beauty Diagram in my documentation?
You can drop a Beauty Diagram image URL directly into markdown files on GitHub, Notion, Medium, or any other platform that supports image embedding.
What themes are available?
Beauty Diagram offers 9 themes including modern, atelier, atlas, obsidian, and more that you can swap without editing the source code.
Tool Details
- Pricing
- Free
- Category
- Ai Diagram Generator
- Added
- Jul 2026
- Last Updated
- Jul 2026
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