Abstract: An adjustable tote divider system for allowing a create dividers in an existing totes, tool boxes, or trays. The adjustable tote divider system comprises a plurality of rigid vertical components and rigid horizontal components, each including a plurality of receiving cuts configured to be oriented in a parallel direction when engaging one the receiving cuts of the corresponding component. The rigid structure allows the grid structure which is formed by the interlocking components to have sufficient rigidity for tools and other items placed in the tote divider system to stand upright. Each of the vertical components and horizontal components also include perforated areas which allow them to be resized at the time of use to fit various depths.