FoilHopper: design sailing foils & boards in your browser

FoilHopper is a parametric design tool for sailing appendages: daggerboards, rudders, and lifting C- and L-foil pairs. Shape the board, set heel and leeway, and export the port and starboard pair as print-ready STL or CAD STEP. No CAD software required.

What you can do

• Design daggerboards, rudders and lifting foil pairs parametrically
• Set heel and leeway so the foil is shaped the way it actually sails
• Blend real foil sections and tune thickness along the span
• Export port + starboard STL or STEP, ready for printing or CNC

Built for dinghy sailors, moth and skiff tinkerers, and small-catamaran builders.