VirtualBox vs VMware Fusion: What are the differences?
Developers describe VirtualBox as "Run nearly any operating system on a single machine and to freely switch between OS instances running simultaneously". VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL) version 2. On the other hand, VMware Fusion is detailed as "Simple Virtual Machines for Mac". It gives Mac users the power to run Windows on Mac along with hundreds of other operating systems side by side with Mac applications, without rebooting. It is simple enough for home users and powerful enough for IT professionals, developers and businesses.
VirtualBox and VMware Fusion can be categorized as "Virtualization Platform" tools.