Abstract: An adjustable mechanic creeper includes a base having an upper surface, a lower surface, and a plurality of casters coupled to the lower surface. A height adjustment brace is coupled to the upper surface of the base. A table includes an upper surface, a lower surface, a front end, a rear end, and sides. The table is coupled to the height adjustment brace. The height adjustment brace is configured to raise and lower the table relative to the base. A seat includes a main frame and at least one cushion coupled to the main frame. The seat is slidably coupled to the upper surface of the table by a track extending from the front end of the table to the rear end of the table.