DFU File Type

- The quick facts

What are DFU files and how to open them

Are you having problems opening a DFU file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a DFU file?

DFU files have multiple uses, and Device Firmare Upgrade Format is one of them.

Device Firmare Upgrade Format

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open DFU files

Important: Different programs may use files with the DFU file extension for different purposes, so unless you are sure which format your DFU file is, you may need to try a few different programs.

While we have not verified the app ourselves yet, our users have suggested a single DFU opener which you will find listed below.

Last updated: June 29, 2022

More file formats using the DFU extension

Through our research of DFU files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • Device Firmware Upgrade Format
  • DfuSe device firmware

Various apps that use files with this extension

These apps are known to open certain types of DFU files. Remember, different programs may use DFU files for different purposes, so you may need to try out a few of them to be able to open your specific file.

iTunesiTunesUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about DFU file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.