I have a .rar file I don't know the password for.

What is the fastest software to get the password?

  • 1
    It would probably take less time to re-download your game than it crack that password. Your best (and only) bet is brute force.
    – jan
    Sep 18, 2016 at 23:37

1 Answer 1


What you want is "rar password brute forcing". archpr is the popular windows option. rarcrack and rar2john are popular open options.

  • And with any decent password these will fail. They will only work if the rar was packed with a dictionary word or a simple derivation of one, like p@ssw0rd or password123.
    – user416
    Sep 19, 2016 at 7:12
  • @JanDoggen Yes breaking good encryption is not cheap but all you need is money to rent a cluster of hardware accelerated (CUDA) brute forcing servers from amazon... I have not found a 'passwords per second per flop' specification for the 2 types of rar encryption but did find some from a computer from the year 2000 elcomsoft.com/help/en/archpr/passwords_and_encryption.html Sep 20, 2016 at 14:07

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