The best open source alternative to Darik's Boot and Nuke is Eraser. If that doesn't suit you, our users have ranked more than 25 alternatives to Darik's Boot and Nuke and eight of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Darik's Boot and Nuke are ABAN, Shredos, nwipe and wipe.
Eraser is an advanced security tool (for Windows), which allows you to completely remove sensitive data from your hard drive by overwriting it several times with carefully selected patterns.
Eraser is for erasing individual files and folders. Dban is for erasing entire hard drives.
ABAN is a boot CD/USB stick for easily and securely wiping all the disks in a machine. Boot disks are available for both 32-bit and 64-bit machines. As a boot disk, it doesn't care what OS is on the machine (or if there is any OS at all).
free, standalone bootable tool, no additional os required
Standalone tool for full disk wiping. Since it does not have fancy graphical UI, not recommended for newbies.
Shredos Disk Eraser 64 bit for all Intel 64 bit processors as well as processors from AMD and other vendors which make compatible 64 bit chips. ShredOS - Secure disk erasure/wipe.
nwipe is a fork of the dwipe command originally used by Darik's Boot and Nuke (DBAN). nwipe was created out of a need to run the DBAN dwipe command outside of DBAN, in order to allow its use with any host distribution, thus giving better hardware support.
Permadelete is a free and open source file shredder, it deletes your files beyond recovery. It's made to be beautiful and easy to use and yet powerful.
DBAN does not require Windows OS or any operating system, as it has it's own self-contained Linux environment.
With Context-Shredder you can destroy your sensitive files. Choose from simple destruction or shredding by Peter Gutmann. Users can create deletion tasks, overwrite available free space or destroy disk drives.
When you normally delete your files in Mac OS X, the operating system is only forgetting where those particular files are placed, while the data still physically remains on the drive. Beginning with Mac OS 10.
it is not a standalone bootable tool, it requires an OS to run
Doesn't Wipe Drives Securely and requires an installed OS. DBAN is OS independent boot utility, and thus its name.
It deletes any file including ones from the trash. Even files that the OS is identifying as in use (when they are not) are wiped entirely with this software. The only reason I refrained from voting it as the best DBan alternative is that I don't know how it will behave with extremely large files, example, a full external Terabyte sized hard drive.
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DBAN is a Full Disk Bootable secure erasure method for platter disks. Eraser is a file and folder eraser for windows and must be installed.