Proxmox VE vs VirtualBox: What are the differences?
Proxmox VE: Open-Source Virtualization Platform. It is a complete open-source platform for all-inclusive enterprise virtualization that tightly integrates KVM hypervisor and LXC containers, software-defined storage and networking functionality on a single platform, and easily manages high availability clusters and disaster recovery tools with the built-in web management interface; VirtualBox: 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.
Proxmox VE and VirtualBox can be primarily classified as "Virtualization Platform" tools.
According to the StackShare community, VirtualBox has a broader approval, being mentioned in 724 company stacks & 979 developers stacks; compared to Proxmox VE, which is listed in 8 company stacks and 4 developer stacks.