What is a .VDI file?
VDI is the native virtual-disk format of Oracle VirtualBox. Created and opened by VirtualBox.
- Did you know
- VDI is the disk format for VirtualBox, the popular free virtualisation tool.
- A dynamically allocated VDI starts tiny and grows as sectors are first written, whereas a fixed VDI pre-allocates its full capacity up front.
- VDI is VirtualBox’s own native disk container, though the program can also read rival formats such as VMDK, VHD and HDD.
- What Analyser reads
- Identify disk and virtual-machine images: ISO, VHD/VHDX (Hyper-V), VMDK (VMware), QCOW2 (QEMU), and VDI (VirtualBox). For raw IMG images it decodes the partition table (MBR/GPT) and the first volume's filesystem - FAT16/32, NTFS, exFAT - with label, cluster size, and volume size.
- Depth of analysis
- .VDI is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .VDI file
- Drag a .VDI file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.