To share your Wi-Fi password on any device, open the Wi-Fi settings and look for a "Share Password" or similar option, which may appear as a popup or require you to tap an information icon next to the network. On Android, you can view all passwords in the Wi-Fi settings and share them using a QR code. On Macs, your password is stored in Keychain Access; open this app and search for the network to reveal its password. Windows users can access their current network's password in the Control Panel, but must use command prompts or download third-party apps to view passwords for other networks. Sharing passwords between devices requires that both devices have each other's Apple ID email addresses stored in Contacts.