DMDE (short for DM Disk Editor) is a well-known hard disk data searching, editing and recovering tool for DOS, Windows, Mac and Linux platforms (both Console and GUI), developed by DMDE Software from Canada. It is very powerful, and it can effectively recover entire directory structures and files by using special algorithms even in complex situations where many other data recovery software can do nothing.

NTFS Data Recovery Toolkit (formerly called NTFS Recovery Toolkit, and NTFS Data Recovery for short) is a set of tools (Disk Editor, Partition Manager, Partition Recovery and File Recovery) that mainly used to analyze and recovery the problem and files on NTFS disk partitions. It supports both 'Manual' and 'Automated' modes to recover data that has been accidentally deleted or lost.

In the DOS era, we generally used the PCTOOLS5.0 to edit file code, but since the FAT32 file system came out, PCTOOLS5.0 was unusable. Seldom excellent file code editor appeared until this WinHex from Germany, which can be regarded as the best hexadecimal editor for file, disk & RAM after the former.