The present soft tissue mobilization device has a quick-release bar clamp and various attachments for its jaws that exert pressure on soft tissue to improve mobility. The bar clamp allows for applying sustained and incremental pressure at various angles. The shape of the attachment surfaces that contact the soft tissue are either complementary toward each other, when they are intended to squeeze the targeted soft tissue between them, or to the body structure against which they are intended to press. Combining a more helpful means of generating and exerting pressure with the right surface contours significantly improves the overall effectiveness of the device, diminishes any associated pain and discomfort, and reduces the time necessary to achieve results.