How to Install Mono and Run KeePass.exe on Mac

Do not install with HomeBrew. HomeBrew has issues with mono and when a thread was opened to address the issues homebrew monitor closed the thread without resolving the issue saying he did not like the tone of the thread.

After Installing Mono via this download link from the official Mono site, mono may be used from the command line.

NOTE:  The path for using mono is:


You can alter your .bash_profile file to make this easier with an alias.

Install KeePass as instructed at this link .

Be sure to

  1. Download the portable version of KeePass (file and unpack it in a location of your choice.
  2. From the KeePass installed directory, run the command $> /Library/Frameworks/Mono.framework/Versions/Current/bin/mono –arch=32 KeePass.exe
  3. ref: Stack Exchange thread:

2 thoughts on “How to Install Mono and Run KeePass.exe on Mac

  1. Hi, thank you very much for the instructions above that are quite relevant to me. I am afraid I use instructions rather like recipes, not much context knowledge. I would like to use keepass on my Mac (BigSur, Version 11.2.2, i.e. always the latest update). I downloaded the Mono framework (and found it…) I also downloaded the mobile version of keepass (v 2.47) and the unzipped folder now resides in ‘Applications’. How does keepass knows there is a framework for it?
    In point 2 in your instructions above you recommend to run a command from the keepass directory. This is where I can’t follow anymore. How can one run a command from a directory?

    1. I did understand in the end, found the commands (cd and dots) for the Terminal to get into the KeePass directory and inserted the command above. Alas – Permission denied.
      Well, either I have another inspiration, or this is the end of it…

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