If you are rooted, you can head to /data/misc/wifi using a file explorer app that supports root browsing. And you don't have permission to view the folder or the file within it unless you're rooted. However, the method requires you to have your device rooted because the file that holds the Wi-Fi credentials for saved networks is in a protected directory of your phone's storage. If you are still running Android 9 or below, we have a way to view saved WiFi passwords for you too. View saved WiFi password on Android 9 and below with root Once done, you will see your network's Wi-Fi password listed below a QR code. You'll need to confirm your face/fingerprint, or enter your PIN code, to move on. Here, you need to select the Share button. Select the once needed to view the options for the network. You will see your current WiFi network at the top of the list. Search for Network & internet and tap WiFi. To view the WiFi password on a phone running Android 10 or above, you need to go to Settings.

View saved WiFi password on Android 10 and above without root

Wifi saved but not connected