Can install a PC BIOS bootloader dealing with both MBR and GPT.Has a powerful template system to view and analyse disk structures.Can save a range of blocks to a file and write a file back to disk.Can access disks remotely over a network connection.Detects connected iPods, showing their firmware partition contents.Can be re-launched with admin (root) rights to access non-removable disks (Mac OS X only).Can view partitions and other subranges as containers with their own start, length and block size.When modifying data, a 'journal' file is written to your desktop that contains the previous data of the altered blocks, and it can be used to undo your changes.Deals gracefully with read errors: You can copy a partially-damaged disk to an image file (bad blocks will become zero-filled in the copy) in order to use recovery tools on the error-free copy then.If you need help with it, or even need improvements, and are willing to pay for my services, get in contact (see end of this document). However, I like to share it with those who know what it's good for. And keep backups of your data on other disks. So you better know what you're doing, especially if you use any 'write' operations. If you have not used other tools to edit disk blocks or files on a binary level before, you may find it difficult to use.īeware: This tool lets you mess with your disk contents in a rather unsafe manner: You can easily write over any data on a disk, rendering the entire disk unusable.

This program comes with hardly any documentation, and it doesn't explain what it does, either. Hex editor for disk sectors, but can also be used to edit files, including disk images. This is a free program for Mac OS X, Windows and Linux.

Hex editor mac os x