Design the bag. Moonshot builds the pattern.

Moonshot is a free browser tool that turns your dimensions and construction choices into a complete, coordinated sewing pattern. Make a tote, purse, train case, duffel or zipper bag at any size you like — no drafting software, no pattern math, and nothing to install. Most makers have a pattern in a few minutes.

Change the width and everything follows. The gusset relengths itself, the stabilizer re-insets, the piping resizes and comes with its own instructions, and the lining is drafted to fit the exterior you just designed — not a generic rectangle. When you're happy, print the pattern at full size, download an editable SVG for Illustrator or Inkscape, or a cutter-ready SVG for a vinyl cutter, along with a cutting list of every piece.

Built for home sewists and hobby bag makers, not for engineers. Pattern-drafting CAD can do more, and asks you to learn drafting to get it. Moonshot asks for your measurements.