An end user navigates to a website using a web browser running in a personal computer. A web application in the personal computer retrieves a uniform resource locator (URL) of the website and wirelessly transmits the URL to a smartphone that is proximate to and in wireless communication with the personal computer by near field communication (NFC). A smartphone app in the smartphone retrieves a password of the end user based on the URL of the website, and wirelessly transmits the password to the personal computer by NFC. In the personal computer, the web application uses the password to login to the website. The password may be automatically entered into a corresponding input field of a login webpage.