John the Ripper Pro password cracker for Mac OS X

John the Ripper is a fast password cracker, available for many operating systems. Its primary purpose is to detect weak Unix passwords, although Windows LM hashes and a number of other password hash types are supported as well. John the Ripper is free and Open Source software, distributed primarily in source code form.

John the Ripper Pro builds upon the free John the Ripper to deliver a commercial product better tailored for specific operating systems. It is distributed primarily in the form of "native" packages for the target operating systems.

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John the Ripper Pro is available for a number of operating systems. This web page describes the Mac OS X revision of John the Ripper Pro.

On Mac OS X, the features currently specific to Pro versions are:

For newer Apple hardware and to support macOS Catalina and Big Sur, builds of JtR jumbo are also provided, including one that uses AVX2 for a speedup on recent Intel Macs, and another that will run on Apple M1 (via Rosetta 2, which is part of macOS).

The links below allow you to pay online with a variety of payment methods, or to choose to pay offline.

Your purchase will be from FastSpring, a trusted reseller of software products and services.

Your private download directory will be created and made available to you immediately upon receipt of your payment.

Unconditional 7-day money back guarantee for purely online payments (including credit card payments, but not including bank wire transfers): if you're for any reason or for no reason at all unsatisfied with the product or download service, we will refund your payment on your request if the request arrives within 7 days after your payment date.

Low price guarantee: our prices on this product are the lowest you can find. If you find a better price on a commercial product with at least the same functionality, for the same operating system, with upgrades and support similar to those included with your purchase, and if you inform us within 30 days of your payment, we will gladly refund the price difference. Shop with confidence!

Please don't hesitate to e-mail us at <orders at> if you experience any problems placing an order or completing your download, or to request a refund.

The following password hash types are currently supported (and more are planned):

You can browse the generic documentation for John the Ripper online. Also relevant is our presentation on the history of password security.

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