D2 Editor

D2 Editor is a D2 text-to-diagram editor for mobile and tablet, designed specifically for software engineers, system architects, and technical writers who want fast, private diagramming on the go. Create, preview, and export clean architecture diagrams 100% offline with zero ads, no accounts, and no subscriptions—ever. KEY FEATURES • D2 Engine: Full support for D2 syntax, layout engines, and built-in themes directly on device. • Instant Live Preview: Real-time diagram rendering side-by-side with your code as you type. • 100% Private & Local: All parsing happens on your device. Zero telemetry, zero tracking, and no internet connection required. • High-Res Vector & Image Export: Export high-quality SVG, PNG, and PDF diagrams directly to local storage or external apps. • Local File Access: Open, edit, and save `.d2` files seamlessly using native storage without cloud lock-in. SUPPORTED DIAGRAM TYPES • System & Network Architecture Diagrams • Sequence Diagrams & Interaction Flows • Software Class & Entity Relationship (ER) Diagrams • Flowcharts, Mindmaps, and State Machines PERFECT FOR TEXT-TO-DIAGRAM WORKFLOWS Whether you are familiar with Mermaid.js, PlantUML, or Graphviz, D2 Editor offers a modern, highly readable syntax designed for fast local diagramming on mobile devices. WHY ONE-TIME PURCHASE? We believe developers deserve reliable, single-purpose utilities without monthly recurring fees or locked features behind paywalls. Pay once, keep all your data local, and own full access forever.