Depending on your security settings, it may be that you need to allow at the first program start to Open Apps from unidentified developers dmg file and the program installed itself. After the Download, the Installation is simple: just Click the. Download the Open Source program KeepassX from our download area on your Mac.For more ways to run KeePass 2.x on Mac OS X (especially how to run the latest version of KeePass 2.x), see the following discussion thread Download one of the KeePass application ZIP packages above, unpack it and move the contents into your 'Applications' folder. KeePass 2.23: KeePass2.23.zip Installation: Install Mono ≥ 3.0 ().Home How to install KeePass on Mac KeePass 2.x for Mac OS X - KeePas