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.
RackTables - Racktables is a nifty and robust solution for datacenter and server room asset management.
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.
SynergyCP - SynergyCP is an on-premises platform that handles the complete management of bare metal for businesses of any size.
RackMonkey - RackMonkey is a tool for managing racks of equipment such as servers and switches.