Originally Posted by CurrentlySober

Why not just use a pen and paper notebook?

But what you can do, is to create a contact on your phone. (iPhone OR Android) First name: the Website URL - Second Name: The Password. Save it.

If I do this, not only is it saved to my phone, but also automatically saved to my contacts app on my iMac and I can also access it on the contacts part of iCloud on any other device.

Or I can create the contact on the iMac or on the PC and it works the same across all devices...

You are already in the apple eco-system. Just do it this way?