CCleaner

Cleaner tool for your system - protects your privacy, makes your computer faster and more secure.

• Bundleware - The software tries to install Avast too - Spyware, runs in background and collects information to send to Avast. Background mode can be disabled, but gets re-enabled on each run - Shows pop-up system wide ads from time to time

Freemium Mac Windows Android Android Tablet

Eraser

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...

Free Open Source Windows PortableApps.com

Darik's Boot and Nuke

Dariks Boot and Nuke ("DBAN") is a self-contained boot disk that securely wipes the hard disks of most computers. DBAN will automatically and completely delete...

• Discontinued DBAN was last updated in June 2015 and does not support SSDs (SATA Secure Erase). The official website is now pushing users to use Blancco Drive Eraser, a commercial drive wiping tool.

Freemium Open Source Mac Windows Linux

Permadelete

Permadelete is an easy-to-use and beautiful app for windows that can delete files and folders permanently.

Free Open Source Windows

DiskGenius

DiskGenius, previously PartitionGuru, is a disk recovery and file recovery system to view partitions and to access data across a number of file systems, including NTFS...

Freemium $ $ $ Windows

WipeFile

WipeFile erases files and folders secure and fast. WipeFile overwrites the information completely, so there is no way to undelete the files or reconstruct the file...

• Discontinued The program is no longer updated. Last version, 2.4, released in April 2014, can be still downloaded from the official website.

Free Windows

Active@ KillDisk

Active@ Kill Disk is disk eraser software for secure formatting of hard drives without any possibility of following data recovery.

Freemium Windows

SDelete

SDelete, short for Secure Delete, is a command-line based data destruction tool and can be run from the Command Prompt in Windows 7, Vista, or XP.

Free Windows

AppleJack

AppleJack is a user friendly troubleshooting assistant for Mac OS X. With AppleJack you can troubleshoot a computer even if you can't load the GUI, or don't have...

Free Open Source Mac

Alternate File Shredder

This program offers the possibility to finally delete files and/or folders (no recovery possible). The program also can overwrite the free space on a drive, which means...

Free Open Source Windows

File Shredder

File Shredder is free desktop application for shredding (destroying) unwanted files beyond recovery.

• Discontinued The program is no longer updated. Last version, 2.50, released in 2012, can be still downloaded from the official website.

Free Windows

EraserDrop

EraserDrop Portable is an easy-to-use secure data removal tool. It is a drop target (a floating icon on your desktop) that you can drop files onto to quickly erase them...

Free Personal Windows PortableApps.com

MobiKin Cleaner for iOS

MobiKin Cleaner for iOS is a simple and professional software that can help you clean all the junk files.

Free Mac

xShredder

With xShredder you can destroy your sensitive files. Choose from simple destruction or shredding by Peter Gutmann 35 times.

• Discontinued Development focus moved to http://alternativeto.net/software/context-shredder/

Free Open Source Windows

Avast Cleanup

Make your PC live longer and run faster Boost your PC speed, free up disk space by removing bloatware and junk files, and solve small issues before they become big...

Commercial $ $ $ Windows Android