Avast Cleanup - Next generation tuneup and cleanup for your PC

Diskdeleter - Diskdeleter is data removal software that helps protect your privacy by securely deleting data from your hard drive.

CleanMyMac X - Clean, protect and speed up your Mac

east-tec Eraser - Protect your sensitive data and privacy, and securely erase all evidence of your Internet and PC...

WinExt Free - Powerful Win utilities: fix registry issues, clean system junk, protect privacy, optimize system, find duplicates, show larger resources, see more info of recently accessed resources, monitor activity, make batch operations, synchronize resources.

Wiperapp - Software build to meet all needs of companies dealing with erasing data on daily basis.