CAD
Draft in the browser. The drawing stays on this device.
EditItAll CAD draws lines, circles, arcs, straight polylines and text, with layers, object snaps and undo. It reads and writes ASCII DXF for those entities. Nothing is uploaded.
Draw
Line, circle, arc through three points, rectangle, straight polyline and text.
Edit
Move, copy, rotate, scale, mirror, offset and erase, with undo.
Snap
Endpoint, midpoint, center, nearest and intersection, plus a grid.
File
Open and save ASCII DXF. A bulge on a polyline is skipped.