How to Delete Your Saved Passwords from Safari on an iPhone

Open your iPhone's Settings. It's the icon with gray gears that's on your Home Screen.

Tap Safari. It's the button with a blue compass icon towards the bottom of the page.

Tap Passwords. It's about halfway down the screen.

Scan your fingerprint with Touch ID if prompted. If you don't have a passcode set up on your iPhone, you will automatically be brought to the saved passwords screen.

Swipe left on a saved login.

Tap Delete. Safari will no longer retain the login information for that password entry. The next time you try to log into that website, you'll have to enter your username and password credentials. Repeat steps 5 and 6 for any additional passwords you want to remove.