Abstract: An outdoor umbrella stabilizer system for preventing wind damage to an outdoor umbrella having a plurality of cords, a plurality of clips and a means of securing the cords to a weighted object. The stabilizer system flexibly maintains the canopy in position, preventing strong winds from catching the canopy and twisting, warping, contorting, buckling or deforming the umbrella, thereby stabilizing the outdoor umbrella. The stabilizer system installs on many styles of outdoor umbrellas, including a cantilever, a beach umbrella, a deck or patio umbrella, a center pole or vertical pole of the umbrella unnecessary for installation. The stabilizer system has a sac containing ballast as a weighted object. The cords attach to the sac. For an umbrella accommodated by a table having a center hold for the umbrella, the table is the weighted object, the cords attaching to the legs.