# UniDiagram Studio

> Online diagram editor supporting Mermaid, PlantUML, D2, and Graphviz.

Canonical: https://unidiagram.davidtran.dev/app

## Features

- Multi-syntax support: Mermaid, PlantUML, D2, Graphviz DOT
- Live real-time preview and syntax validation
- Local storage and diagram history
- PNG export (free 0.5x scale, Pro full scale)
- SVG and PDF export (Pro)
- Diagram sharing via unique link (Pro)
- Cloud history synchronization (Pro)

## Quick Start

Open https://unidiagram.davidtran.dev/app to create, edit, and export diagrams directly in your browser.

## Related

- [Home](https://unidiagram.davidtran.dev/index.md)
- [Pricing](https://unidiagram.davidtran.dev/pricing.md)
- [Documentation & Guides](https://unidiagram.davidtran.dev/blog.md)
- [Agent Catalog](https://unidiagram.davidtran.dev/llms.txt)