A standard feature of all browsers is saving passwords when you log in to websites.
The Safari Browser on iOS is no different. Below are steps to set up Safari on your iPad to save important passwords.
1. Go to Settings
2. Enter the Safari Settings & Enter AutoFill.
3. From AutoFill, enable "Names and Passwords."
4. Once moving the button to green, a pop up will appear recommending you set a passcode on the device. If you have already set a passcode, you won't see the next two pop-ups.
5. Now the next time you successfully log in to a web site you will be prompted to tell the browser whether or not to save your password.