To see all the user names and passwords stored in Keychain on your iPhone or iPad, do this:
- Launch Settings
- Tap Passwords & Accounts
- Tap Website & App Passwords
That gets you to the list of stored logins. From here you can search for a specific login, and tapping on one shows the user name, password, and associated website or app. Tap Edit to change what’s stored in the entry.
You can also delete logins from the list view by swiping to the left on an entry. Assuming you’re syncing Keychain through iCloud any changes you make on one device will propagate out to your other devices. If you delete a login on your iPhone, for example, it’ll disappear from your iPad and Mac, too.
This tip works just for passwords stored in Apple’s own Keychain tool. If you’re using a more powerful password manager, like 1Password, you’ll have to manage logins using that tool’s app instead.