Kali Linux is an open-source Debian-based distribution maintained by Offensive Security for penetration testing, security auditing, and ethical hacking. It ships hundreds of preinstalled security tools, documentation, community forums, and optional commercial training paths.
Kali Linux downloads and documentation are free; the site also links to paid Offensive Security training and certifications separately.
API access
Not confirmed; Kali is an operating system distribution rather than a hosted API product.
Is Kali right for you?
A good fit for
Security professionals, students, and researchers performing authorized penetration tests or lab work who need a curated offensive-security toolset.
Before you choose
The distribution is free to download; advanced training, exams, and support are sold through linked Offensive Security programs, not as Kali subscription tiers on kali.org.
Offensive security Linux
Kali.org presents Kali Linux as the flagship open distribution for penetration testers, with downloads, docs, community channels, and pointers to Offensive Security training.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
Capability
Value
Evidence
Checked
Penetration testing focus
Homepage title describes Kali as a penetration testing and ethical hacking Linux distribution.
Facts sourced
2026-10-04
Documentation hub
Site navigation provides documentation, tools documentation, FAQs, and community support links.
Facts sourced
2026-10-04
NetHunter mobile
Navigation includes Kali NetHunter for mobile penetration testing platforms.
Facts sourced
2026-10-04
Understand the total cost
Kali pricing & plans
Free
Free
Kali Linux downloads and documentation are free; the site also links to paid Offensive Security training and certifications separately.
Access
Kali Linux downloads and documentation are free; the site also links to paid Offensive Security training and certifications separately.
Kali Linux is an open-source Debian-based distribution maintained by Offensive Security for penetration testing, security auditing, and ethical hacking. It ships hundreds of preinstalled security tools, documentation, community forums, and optional commercial training paths.
Does Kali have a free plan?
Kali Linux downloads and documentation are free; the site also links to paid Offensive Security training and certifications separately.. This record lists ongoing free access; check the plan limits before starting.
How much does Kali cost?
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Kali through an API?
Not confirmed; Kali is an operating system distribution rather than a hosted API product.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
The distribution is free to download; advanced training, exams, and support are sold through linked Offensive Security programs, not as Kali subscription tiers on kali.org.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.