Free download the best Mac disk formatting software - Super Eraser for Mac. It also can format SSD hard drive and erase data under Mac OS. It can easily format hard drives, storage devices and permanently erase all the data on the targeted media. Super Eraser for Mac is a very powerful tool to permanently erase data from Mac hard drive or storage media. Super Eraser for Mac - best Mac Disk Format Software Three Useful Disk Formatting Software for Mac 1. In this article, we will introduce some Mac disk formatting software tools to help Mac users easily and securely format hard drive, USB flash drive, memory card or other device under Mac OS. Especially for the new Mac users, it seems difficult to find a solution to format local hard drive or external hard drive under Mac OS. However, when a Mac user right-clicks a hard drive on Mac, he can’t see the quick format option. For Windows users, it is very easy to format a hard drive using built-in quick format feature. Formatting is a prior method to delete all data from local/external hard drive or fix disk error.