Features

Drawfinity is an infinite canvas drawing app with pressure-sensitive brushes, real-time collaboration, and a built-in turtle graphics scripting environment.

Infinite Canvas

Draw without boundaries on a smooth, zoomable canvas. The camera supports momentum panning — flick the canvas and it glides with inertia — and log-space zoom for perceptually uniform speed at any scale.

• Zoom range from 1e-10 to 1e10 (effectively infinite)
• Scroll wheel, trackpad pinch, or keyboard shortcuts for zoom
• Toggle a reference dot grid with Ctrl+'
• Camera bookmarks to save and recall positions (Ctrl+B)

Drawing Tools

Brush Presets

Drawfinity comes with four brush presets, each tuned for a different use case:

Preset	Width	Pressure	Opacity	Use case
Pen	2px	Constant	Full	Technical drawing
Pencil	1.5px	Responsive	Pressure-based	Sketching
Marker	8px	Low sensitivity	Full	Bold strokes
Highlighter	16px	Constant	30%	Overlay marking

Switch between presets with number keys 1–4, and adjust size with [ / ].

Shape Tools

Four shape tools for quick geometry, each supporting pressure-sensitive stroke width:

• Rectangle (R) — click and drag to draw rectangles
• Ellipse (O) — click and drag to draw ellipses
• Polygon (P) — click and drag to draw polygons
• Star (S) — click and drag to draw stars

Eraser

Press E to switch to the eraser tool and remove strokes by drawing over them.

Real-time Collaboration

Connect to a shared room and draw together — all changes sync instantly and conflict-free via Yjs CRDTs. Multiple users can draw at the same time without conflicts or overwrites.

1. Press Ctrl+K to open the connection panel
2. Enter a server URL and room ID
3. Click Connect and start drawing together

See Collaboration for details on server setup and architecture.

Turtle Graphics

Open the turtle panel with Ctrl+` and write Lua scripts to drive a virtual turtle across the canvas. The turtle draws real canvas strokes as it moves — use it to generate spirals, fractal trees, recursive snowflakes, and other geometric patterns.

-- Draw a square
for i = 1, 4 do
  forward(100)
  right(90)
end

Built-in examples are included to help you get started. See the Turtle Graphics guide and Turtle API reference for full details.

Camera & Navigation

• Momentum panning — flick the canvas and it glides with inertia
• Smooth zoom — scroll wheel, trackpad pinch, or Ctrl+=/Ctrl+- with animation
• Camera bookmarks — save and recall camera positions (Ctrl+B to open, Ctrl+D to quick-add)
• Dot grid — toggle a reference grid with Ctrl+'
• Pan modes — middle mouse drag, Space + drag, or G to toggle pan/zoom tool

Stylus & Tablet Support

Pressure data is read from PointerEvent.pressure and works with:

• Wacom tablets on all platforms
• Windows Ink via WebView2
• Mouse input defaults to 0.5 pressure, so all brush presets work without a stylus

Cross-Platform Desktop

Drawfinity runs as a native desktop app on Linux, macOS, and Windows via Tauri v2. The desktop build includes file save/load and full tablet support. See Cross-Platform Notes for platform-specific details.