Img4Helper is a small tool built for handling Apple’s Image4 format used for the boot files in iOS/iPadOS and other operating systems built by Apple. It’s purpose is to make analysis, decryption, decompression and extracting these files easier. Img4Helper (and Libhelper) are open-source, so please check it out of Github where I have a more in-depth discussion of the tool.

Special thanks to @tihmstar and @xerub. Although they did not personally help me with this project, by open-sourcing both img4tool and sepsplit they made this possible.


This is the first non-Beta Release of Img4helper. Thank you for using Img4helper, please Tweet me @h3adsh0tzz with what you think and/or if you have any issues. You can checkout the usage documentation on Img4helper’s Github.


Platform Version Link
macOS v1.0.0 Release Download Latest

NOTE: Img4Helper currently only works on macOS, Linux and iOS support will be added eventually. No prerequisites are required.

Historical Downloads

I still keep older releases of Img4helper on my server for troubleshooting purposes, or for any other reasons one may require an older version. Changelogs are contained within the downloadable .zip.

Platform Version Link
macOS v1.0.0 Beta3 Download
macOS v1.0.0 Beta2 Download
macOS v1.0.0 Beta1 Download