Open the Settings app
Tap Passwords
Authenticate with Face ID, Touch ID, or your passcode
Search for the website or app
Tap the saved login
Tap the password field to view the password
Tap Copy if you want to copy it
Use Safari Passwords on iPhone by going to Settings > Passwords
Use iCloud Keychain passwords synced across Apple devices
Check saved Wi-Fi passwords in Settings > Wi-Fi
Tap the connected network
Tap Password and authenticate to reveal it