DiagramLab - Mermaid/PlantUML
Mermaid & PlantUML Diagrams
Only for Mac
$34.99
Mac
Build diagrams as code in DiagramLab. Instant preview, zoom, and export to SVG/PDF/PNG.
DiagramLab turns diagram code into polished visuals—fast.
Write Mermaid or PlantUML in a clean, developer‑friendly editor and see the result instantly with a live preview. Great for documentation, architecture notes, UML, and README diagrams.
FEATURES
• Mermaid + PlantUML support (choose per project)
• Live preview: Split / Code / Preview modes
• Helpful error reporting with line-focused feedback
• Zoom controls for detailed diagrams
• Export to PNG, JPG, SVG, PDF, or HTML
• Drag & drop export: drag projects to Finder as source files
• Import .mmd, .mermaid, .puml, .plantuml files
• Keyboard shortcuts for faster workflow
• Local project library: create, search, duplicate, rename, delete
• No sign-in required — save projects locally
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Bug fixes and improvements
The developer, Vladyslav Zhavoronkov, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Vladyslav Zhavoronkov
- Size
- 817.6 KB
- Category
- Developer Tools
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 ITCOREX
