Workstation Pro and VirtualBox are the two desktop hypervisors most people compare once they learn both are free. They solve the same basic problem — running a guest OS inside a window on your existing machine — but come from different vendors, different codebases, and different performance profiles.
| Workstation Pro | VirtualBox | |
|---|---|---|
| Price | Free (personal & commercial) | Free (open-source, GPLv2) |
| Vendor | Broadcom | Oracle |
| Host operating systems | Windows, Linux | Windows, Linux, macOS, Solaris |
| Typical guest performance | Faster on most Windows/Linux workloads, especially disk and 3D | Solid for general use; noticeably behind on 3D-heavy or I/O-heavy guests |
| 3D acceleration | Vulkan 1.3, DirectX 11 in guest | Basic 3D via VirtualBox Guest Additions — more limited API support |
| Snapshots | Multiple, tree-based, linked clones | Multiple, tree-based (no linked-clone equivalent) |
| Encrypted VMs | AES-256, full disk | Optional, per-VM |
| Virtual networking | Up to 20 custom vmnet networks | NAT, bridged, internal, host-only networks |
| REST API | Yes | No (CLI and SDK only) |
| Remote server connections | Connect to ESXi / vCenter directly | Not supported |
| Import a foreign VM | Imports VirtualBox, Hyper-V, .ova/.ovf | Imports .ova/.ovf |
Both are free now, so the choice comes down to what you're running and how much you care about raw performance. Workstation Pro is generally the better pick if you're on Windows or Linux and want the fastest guest performance, 3D acceleration for CAD or game-development workloads, or the ability to connect directly to an ESXi host or vCenter Server from the same app. VirtualBox is a reasonable choice if you're on an OS Workstation Pro doesn't support (Solaris hosts, for instance), you want a fully open-source stack end to end, or you already have an existing VirtualBox VM library and don't need the extra performance.
Workstation Pro can import a VirtualBox VM directly — there's no need to rebuild it from scratch. Go to File → Import, point it at the VirtualBox VM (or export it from VirtualBox as an .ova first), and Workstation Pro converts the disk format and hardware configuration automatically. The full walkthrough, including what to do if the imported VM won't boot, is in the Open and Import a Virtual Machine guide.
The most consistently reported gap is on I/O-heavy and 3D-heavy guests: Workstation Pro's disk and graphics virtualization layers are generally faster, which matters if you're running a guest IDE, a database, or anything using hardware-accelerated graphics. For light guests — a single terminal-only Linux VM, for example — the difference is far less noticeable, and either hypervisor will feel fine.