Racksmith - RackSmith is designed to provide an easy to use web interface to manage equipment and connections...
NetBox - NetBox is an open source web application designed to help manage and document computer networks. NetBox was developed specifically to address the needs of network and infrastructure engineers.
Opendcim - a free, web based Data Center Infrastructure Management application.
DCImanager - DCImanager is a platform for managing physical equipment. Connect any physical equipment to a single platform. Use the platform to manage your servers, switches, PDU as well as physical and virtual networks.
RackMonkey - RackMonkey is a tool for managing racks of equipment such as servers and switches.
EasyDCIM - EasyDCIM Is an Control Panel For Automated Data Center Management By ModulesGarden.