Sheetwise is a sheet cutting calculator for plywood, MDF and acrylic. Enter your sheet size and a parts list in millimetres or inches, set the saw kerf, edge trim and whether parts can rotate, and it shows how many sheets you need and the percentage of material used. The page labels it beta and says layouts are feasible, not guaranteed minimum-sheet.
The calculations run in your browser with no account needed, and projects save in local storage. Limits are 20 part rows, 100 pieces and 20 sheets. An optional Project Pass at $4.90 one-time gives 7 days of PDF, CSV and SVG work-pack downloads.
Planning cuts for plywood and MDF by hand wastes time and material. Sheetwise gives woodworkers a quick way to plan sheet layouts in the browser.