Abstract: The present invention is a portable strap roll up device. The strap roller can be moved to any location on a semi-trailer or flat bed truck and mounted quickly and easily to roll up a load securing strap. Once the strap is rolled up, it can be easily slid off the roll up tool and placed in storage. With this roll up tool one can easily and quickly roll up straps for storage in a neat manner, ready for their next use. The present invention avoids the need for fixed roll up tools for each strap and at the same time the tiresome burden of hand rolling the straps.