John the Ripper

John the Ripper is an Open Source password security auditing and password recovery tool available for many operating systems.

Password cracking software · by Alexander Peslyak · openwall.com

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What John the Ripper’s own pages say

What it says it doesJohn the Ripper is an Open Source password security auditing and password recovery tool available for many operating systems. openwall.com
Free planYes openwall.com
PlansJohn the Ripper Pro for Linux, John the Ripper Pro for macOS openwall.com
Open sourceYes openwall.com

Each value is a quote AirStack found on the product’s own pages, read 2026-11-04. A missing field means AirStack has not found it on its pages.