The VMware vSphere Web Client allows an administrator to connect to a vCenter Server system and manage a vSphere environment. VMware allows third-party developers and partners to customize plug-ins with product-specific toolbars and icons.
Popular VMware vSphere Web Client plug-ins include:
vCenter Orchestrator - a vCenter feature that helps automate VMware vCloud Suite, vSphere and other virtualization management system processes.
Client Integration Plug-in - provides access to a virtual machine's console in the vSphere Web Client, as well as access to other vSphere infrastructure tasks.
vSphere Storage Appliance - transforms local storage into a shared storage resource that runs virtualized applications.
Cisco Nexus 1000V - a Cisco NX-OS virtual switch for multi-tenant services.