Disk images

VMDK → VDI

Learn about the formats: What is VMDK? What is VDI?

At a glance

ConvertX.am converts VMDK files to VDI online, for free and without signing up. Upload a file of up to 500 MB and download the VDI result; uploaded and converted files are deleted automatically within about an hour.

Input:: VMDK
Output:: VDI
Price:: Free, no sign-up
File size:: Up to 500 MB
Your files:: Deleted automatically within about an hour

Convert VMDK disk images to VDI format instantly to run VMware virtual machines inside VirtualBox. This tool ensures a seamless transition between different hypervisor environments.

VMDK (Virtual Machine Disk) is developed by VMware for products like Workstation and ESXi, while VDI (VirtualBox Disk Image) is the native format used by Oracle VM VirtualBox. During conversion, the underlying disk structure and file system sectors are translated so VirtualBox can natively mount and boot the operating system without compatibility errors.

This conversion happens without loss, meaning data integrity and file quality are fully preserved between VMDK and VDI.

Tips

Power down the virtual machine completely in VMware before exporting the VMDK file.
Ensure you have enough free disk space on your host machine, as virtual disk images can be very large.
Check that the virtual disk controller type matches or is supported by VirtualBox after mounting the new VDI file.

Common use cases

Migrating an existing VMware virtual server infrastructure over to a VirtualBox environment.
Accessing a development or testing VMDK snapshot directly on a workstation running Oracle VirtualBox.
Consolidating various hypervisor formats into a standardized VirtualBox setup.

Why ConvertX stays free — forever

We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.

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Free tools today — and always

Every converter on ConvertX is free to use: no trials, no premium tiers, and no credit packs. We will never put core conversion features behind a subscription. Whether you convert one photo or a hundred files a week, the price stays zero.

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Privacy-first processing

Many image, audio, and video conversions run entirely in your browser. Your files never leave your device for those jobs. When server processing is required for documents or specialized formats, uploads are handled securely and removed automatically — typically within one hour.