John the Ripper Pro password cracker for Linux

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 Linux revision of John the Ripper Pro.

On Linux, the features currently specific to Pro versions are:

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

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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 Linux distributions are supported by the latest version of John the Ripper Pro:

Yes, most of these versions are pretty old, which is intentional - we built the package in such a way that it will run even on these older systems, as well as on your newer ones. Additionally, you will be able to download a previous version of John the Ripper Pro, which supports even older distributions:

The following password hash types are currently supported in the latest version (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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