How to open iPhone when password is forgotten ?

Apple ID password or the phone passcode?

If you forgot the Apple ID password, enter the Apple (iCloud) ID, and click Forgot Password. See if you can get a Rescue or Notification  email option if necessary.

Apple ID - Manage            

Apple ID – Forgot Password            

Phone passcode.

Passcode - If you forgot the passcode for your iPhone or your device is disabled.      

RubyNab21 wrote:

How to open iPhone without password

Password to what?