What is a .UBI file?
UBI is a Linux flash-memory volume image for raw NAND in embedded devices.
- Did you know
- UBI manages wear and bad blocks on the flash chips inside many gadgets.
- UBI stands for Unsorted Block Images, a layer that handles wear levelling and bad-block management on top of Linux’s memory technology device subsystem.
- UBI sits between raw NAND flash and a filesystem such as UBIFS, presenting tidy logical volumes over messy physical erase blocks.
- What Analyser reads
- Identify and read more disk images, firmware and VM files: TRX router firmware, USB DFU images, UEFI/BIOS flash volumes (.fd/.rom), Linux UBI volumes, Android sparse images (.simg), U-Boot FIT (.itb), raw floppy images (.dsk/.ima/.vfd with FAT boot sector), VMware snapshot metadata and NVRAM, Parallels VMs and disks (.pvm/.hdd), OVF manifests (.mf) and Veeam backups (.vbk).
- Depth of analysis
- .UBI 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 .UBI file
- Drag a .UBI 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.