I'm happy with PasswordSafe. It's very oldskool, you'll have to run it under Wine on MacOS and Linux, and you'll have to do your own syncing (I just use Dropbox

I'm happy with PasswordSafe. It's very oldskool, you'll have to run it under Wine on MacOS and Linux, and you'll have to do your own syncing (I just use Dropbox, but want to switch to Owncloud some time).