Log browser is a plug-in to the vSphere Web Client, and is part of the vCenter Server installation package. To use the log browser, you must deploy the log browser plug-in.
If you deploy the log browser plug-in, you can view, search, and export one or more vCenter Server and ESXi log files at a time using the log browser. You can also export, manage, and view different log types.
The log browser cannot be used for the Platform Services Controller in the vCenter Server Appliance or vCenter Server on Windows.