A drawer organizer that is easily customizable and that is configured for simple packaging as a kit. The drawer organizer includes a base and a plurality of partitions formed from a flexible material having a grid or waffle configuration that provides a plurality of grid spaces therein and a plurality of tabs along portions of the perimeters of the base and partitions. Connector assemblies are provided to retain the partitions at junctions therebetween. The connector assemblies include an inside corner piece and a pair of locking plates. The corner piece engages grid spaces in the intersecting partitions. The locking plates engage the corner pieces to capture the partitions therebetween. The drawer organizer can be provided as a kit in a rolled up tubular form in which all components thereof are rolled together.