A creeper that folds into a seat, converting between a flat 40 by 16 by 5.5 inch board for sliding under a vehicle and an upright Z-shaped stool measuring 21.5 by 16 by 19.5 inches. A locking pin makes the change and holds the chosen position firmly, so the frame does not shift partway through a job. Lying flat, the deck sits 4.5 inches off the floor, low enough to pass beneath most vehicles without extra lifting, and in that mode it carries up to 350 lbs of load. Folded upright it becomes a seat with a 13.5 by 9.5 inch cushion, rated to 300 lbs for tasks done at wheel or bumper level. The frame is heavy-duty metal and stands up to repeated conversion between the two positions. Padding runs across the contact areas, taking the edge off long periods spent lying on a hard surface, and the covering is PVC leather, which wipes clean of grease and oil rather than absorbing it into the surface. Six universal wheels let it roll in any direction, so it follows the work along a vehicle instead of being lifted and repositioned repeatedly, and protective caps fit over the frame ends to reduce scrapes. The whole unit weighs 16 lbs empty. Assembly is required. It is suited to a garage, workshop, or auto repair setting.