Click objects to select them. Drag points to reshape, drag shapes to move, drag empty canvas to pan.
Selected
Nothing selected. Use the Select tool and click any object.
Display
Style
Point color
Line color
Fill (polygons)
Stroke width
Unit label
Grid
Grid spacing
Actions
File
x 0.00 · y 0.00
100%
Geometry Builder
A digital compass and straightedge. Points snap to one another, to midpoints, to intersections, and to the grid — watch for the small marker under your cursor telling you what you are about to snap to.
Segments, lines, and circles are drawn with two clicks, with a live preview between them. Click an existing point to connect to it — it glows when you are close enough.
Enter / Dbl-click
Close the current polygon (or click its first vertex)
Esc
Cancel the current drawing · clear selection
Delete / Bksp
Delete the selected object
Ctrl+Z / Ctrl+Y
Undo / redo
Scroll / Pinch
Zoom toward the cursor
Drag canvas
Pan (Select tool, middle mouse button, or hold Space)
+ − 0
Zoom in · zoom out · fit construction
Drag a shape
In Select, dragging a segment, circle, or polygon moves it whole; dragging a point reshapes everything built on it