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
- Open raw disk images (IMG, IMA, DSK) like a folder - Analyser mounts the FAT12/16/32 filesystem, whether a bare SD card / USB / floppy image or an MBR-partitioned disk, and lists every file in a browsable tree and treemap so you can click any one to analyse it, reading the volume label, cluster size and free space along the way; it also carves every image out of the raw sectors, recovering deleted and orphaned photos the directory no longer lists. It identifies virtual-machine and optical images (VHD/VHDX Hyper-V, VMDK VMware, QCOW2 QEMU, VDI VirtualBox, ISO) and shows the partition table; non-FAT filesystems (ISO 9660, ext2/3/4, NTFS, exFAT) are identified but not yet browsed. Compressed backups (IMC - Runtime Software / GetDataBack; ADI - Active@ Disk Image / AOMEI Backupper) are identified with their label and details; convert them to a raw .img in the tool that made them to browse and carve them.
- 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.