Knoppix
Knoppix is an operating system based on Debian designed to be run directly from a CD / DVD (Live…
27 Alternatives To Knoppix

AIO Boot
AIO Boot is an All-in-One bootable software for USB and HDD.

ArchStrike
An Arch Linux repository for security professionals and enthusiasts.
BlackArch
BlackArch Linux is an Small Arch Linux iconArch Linux -based distribution for penetration testers…
Boot Repair Disk
A simple tool to recover access to your Operating Systems.
Easy-to-use (repair in 1 click ! )
Cyborg Linux
The most advanced, powerful and yet beautiful penetration testing distribution ever created.

Damn Small Linux
Damn Small Linux is a very versatile 50MB mini desktop oriented Linux distribution.
Boot from a business card CD as a live linux distribution (LiveCD) Boot from a USB pen drive Boot from within a host operating system (that's right, it can run *inside* Windows) Run very nicely from an IDE Compact Flash drive via a method we call "

Debian
Debian is a free distribution of the GNU/Linux operating system.
Dracos Linux
Dracos Linux is an open source operating system provides to penetration testing. Packed with a ton of pentest tools including information gathering, forensics, malware analysis, mantaining access, and reverse engineering.
GParted
Extremely powerful partition manager. Copy, clone partitions.

Hirens BootCD
Hirens BootCD is a powerful, all-in-one boot disk utility that will help you resolve and make reformatting your computer easily.
Kali Linux
Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration…
Kon-Boot
Kon-Boot is a password hacking, password recovery tool for Windows and Mac.

Lubuntu
Lubuntu is a fast and lightweight operating system with a clean and easy-to-use user interface. The core of the system is based on Linux and Ubuntu. Lubuntu uses the minimal desktop LXDE, and a selection of light applications.
MediCat USB
A multiboot Linux USB and Win10PE_x64 for PC Repair.
Parrot Security OS
The best choice for security experts, developers and crypto-addicted people.
Password Recovery Bundle
Quickly recover or reset passwords for Windows, PDF, ZIP, RAR, Office Word/Excel/PowerPoint documents. Retrieve passwords for instant messengers, email accounts, web browsers, FTP logins, and more.
Rescatux
Rescatux is a GNU/Linux rescue cd (and eventually also Windows) but it is not like other rescue…

SystemRescueCd
SystemRescueCd is a Linux system rescue disk available as a bootable CD-ROM or USB stick for…

Trinity Rescue Kit
Trinity Rescue Kit or TRK is a free live Linux distribution that aims specifically at recovery and…

Ultimate Boot CD
The last Boot CD you’ll ever need. You need the Ultimate Boot CD if you want to:
Wifislax
Wifislax is a Slackware-based live CD containing a variety of security and forensics tools.
hashcat
The World’s Fastest CPU/GPU powered password cracker.
ophcrack
Ophcrack is a Windows Password cracker based on Rainbow Tables. Features