A search for free VMware tools will result in over 17 million results. This involves a lot of time searching for what you need. The VMware community provides websites that collect the many of the URLs and aggregates them into portal of sorts.
Here are a few sites that will help you if you are looking for tools (mostly free) to support your vSphere environment:
101 Free Tools for VMware Administrators can be found at http://www.vmwarearena.com/2013/06/101-free-tools-for-vmware-administrators.html
A List of FREE VMware vSphere Tools can be found at http://kendrickcoleman.com/index.php/Tech-Blog/a-list-of-free-vmware-vsphere-tools.html
TechHead VMware Tools can be found at http://techhead.co/vmware-esx-tools/
Some of the tools here are for non-vSphere (Horizon View) installs, but there are more than enough vSphere solutions.