Diskilla

Diskilla is a command-line utility designed for securely deleting files and partitions from storage devices. Its primary function is to overwrite data multiple times with specific patterns, making it difficult or impossible to recover the original information. This process is often referred to as "data sanitization" or "disk wiping."

The tool supports various deletion algorithms, including those that comply with industry standards like DoD 5220.22-M and Gutmann. Users can select the number of passes and the overwrite pattern to be used. Diskilla can target specific files, directories, or entire disk partitions. It also offers the option to securely erase free space on a drive, ensuring that previously deleted files that might still be recoverable are also overwritten.

Diskilla is typically used in situations where data privacy and security are paramount. This includes scenarios such as disposing of old hard drives, preparing a computer for sale or donation, or ensuring that sensitive information is not accidentally leaked. The utility is known for its straightforward interface and its effectiveness in rendering data unrecoverable by conventional or specialized data recovery techniques. It is available for various operating systems, though its use requires administrative privileges.