DiagrammerHigh-Performance Diagramming

Create stunning diagrams with 10,000+ shapes at 60fps. Collaborate in real-time. Works offline.

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High Performance

Render 10,000+ shapes at 60fps using Canvas 2D API with spatial indexing and viewport culling.

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Work together with Protected Local mode. CRDT-based sync ensures conflict-free editing.

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Built-in flowchart, UML, and ERD shapes. Create and share custom shape libraries.

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Runs as a native desktop app (Tauri) or in your browser. Full offline support.

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Export to PNG, SVG, PDF, or JSON. Copy to clipboard. Import from various formats.

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Beautiful dark interface with customizable themes and style profiles.