As the title says, is it possible to use Keys in my browser on a machine that doesn’t have ExpressVPN installed? For example, if I sign in to my browser on a work computer that I do not want to install a VPN on, can I not use Keys?
Unfortunately it’s not possible to use ExpressVPN Keys without VPN app being installed. However, you don’t need to connect to a VPN and you can use Keys even with expired subscription.
If you prefer a password manager that doesn’t rely on another app, you may try Bitwarden. I gave it a try (and switched Keys off) because it supports passkeys and hardware security keys like YubiKey. Keys doesn’t support these at this moment.