To find your WiFi password on an iPhone, go to Settings > Apple ID > iCloud and turn Keychain on. On your Mac, go to System Preferences > Apple ID > iCloud and turn Keychain on. Finally, open Keychain Access, search for your WiFi network'sname, and check the box next to Show Password.
Right-click on your computer's Wi-Fi adapter in the list, choose Status > Wireless Properties. Under the Security tab, you should see a password box with dots in it—click the Show Characters box to see the password appear in plain text.
You may not know it, but your iPhone is packed full of saved passwords that you use for websites, apps, and Wi-Fi networks. These passwords are saved in the Keychain, a program stores your login information and helps you by auto-filling them into login forms.
On the disconnected device, go to the Settings > Wi-Fi. Tap the name of the network you would like to join, and you'll get the password prompt. Unlock the other iOS device and hold it up to the device you're connecting. That already-connected device will receive a prompt asking to share the Wi-Fi Password.
Go to Settings –> [Your Name] –> iCloud –> Keychain on your iPhone, iPad, or iPod touch and make sure "iCloud Keychain" is switched on. From then on, all the passwords you enter and save for Wi-Fi hotspots on the devices will sync to all of your other Apple devices.
Use Siri to find saved passwords You can use Siri to view your passwords by saying something like "Hey Siri, show my passwords." If you're looking for the password to a specific app or website, you can also ask Siri. For example, "Hey Siri, what is my Hulu password?"
You might expect that you could look up your Wi-Fi password right on your iPhone, but Apple doesn't allow it. There's just no feature in the iOS to find a Wi-Fi password, not even if you have the password saved in your Keychain.
How to Reset a WiFi Password on the iPhone 5
What you can do is find a saved Wi-Fi password by going into Settings > Network & Internet > Network and Sharing Center > Connections: [Network Name] > Wireless Properties. Select the Security tab and check the Show characters box to copy the password.
Windows PCs, Macs, Android devices, and even your iPhone saves your WiFi passwords. On an iPhone, the WiFi passwords are actually saved in the iCloud Keychain. iCloud Keychain is a password management service offered by Apple, helping you save your passwords.
Your iPhone does not allow you to view your saved WiFi passwords. However, that does not mean you cannot access any of your saved passwords on your device. The feature called Keychain on your iPhone can help you access all your saved passwords, including the passwords that you have saved for various websites.
What To Do When Your iPhone Won't Share Wi-Fi Passwords
If you'd like to receive a WiFi password on your iPhone or iPad:
> Steps to import passwords to iPhone with iCloud Keychain:
How to find saved passwords on iPhone and iPad
Here are the steps to setting up a guest network: