SOFTWARE LICENSE GUIDE
John the Ripper
John the Ripper is an open-source password security auditing tool licensed under the GNU GPL. It helps identify weak passwords.
What it does
It helps in testing the strength of passwords and identifying weak ones through various cracking techniques and dictionary attacks.
Who it may suit
Security professionals, system administrators, and auditors performing password security assessments.
Free tier and license
As open-source software, John the Ripper is available for free use.
Limitations to check
Specific limitations are not detailed in the provided information. Please refer to the official documentation.
Licensing notes
John the Ripper is open-source software licensed under the GNU GPL, allowing for free personal and commercial use under the terms of the license.
Verification details
Last licensing verification recorded: 2026-10-28.
Directory record last updated: 2026-09-16. These are separate dates: a record update does not necessarily mean the publisher's terms changed.
AI-assisted summaries may be incomplete or outdated. Confirm licensing, pricing, and commercial-use rights in the official sources before making a business decision.
Frequently asked questions
Is John the Ripper free?
Yes, John the Ripper is open-source software licensed under the GNU GPL, making it free to use.
What is the primary purpose of John the Ripper?
It is primarily used as a password security auditing tool to test password strength.
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