Kali Linux

Kali Linux
DeveloperOffensive Security
OS familyLinux (Unix-like)
Working stateActive
Source modelOpen-source
Initial releaseMarch 13, 2013 (2013-03-13)
Latest release2026.2 Edit this on Wikidata / 29 June 2026 (29 June 2026)
Repository
Update methodRolling release
Package managerAPT (several front-ends available)
Supported platformsx86-64, armhf, aarch64 armhf, armhf, aarch64
Kernel typeMonolithic (Linux)
Default
user interface
Xfce (others available)
LicenseGNU General Public License v3.0
Official websitewww.kali.org

Kali Linux is a Linux distribution designed for digital forensics and penetration testing. It is maintained and funded by Offensive Security. The software is based on the testing branch of the Debian Linux Distribution: most packages Kali uses are imported from the Debian repositories. Kali Linux has gained popularity in the cybersecurity community due to its comprehensive set of tools designed for penetration testing, vulnerability analysis, and reverse engineering.

It was developed by Mati Aharoni and Devon Kearns of Offensive Security through the rewrite of BackTrack, their previous information security testing Linux distribution based on Knoppix.

Kali Linux was featured in multiple episodes of the TV series Mr. Robot.