Excellent software for disk defragmentation.
Fast and easy to use hex editor.
Utility that allows you to read and view files and folders from various operating systems, including Linux, Windows and Mac.
Professional tool for protecting and hiding files, folders, and USB drives on computers with Windows.
Program that allows you to split a file into several parts and vice versa.

Utility for PDF documents that allows you to merge, split, group, protect, clean metadata, insert and extract pages.