computer
hand

stop using passwords.

clef is a mobile app that replaces usernames and passwords with your smartphone.
  • clef for wordpress

    wordpress

    Secure, easy, passwordless 2-factor authentication in less than 10 minutes.

    add now
    pay with clef

    e-commerce

    Check your customers out faster and bring them back more often.

    charge now
    clef logo

    developer

    Add secure, and easy, 2-factor authentication to any site.

    integrate

    how clef works a look into the security and technology behind clef

    computer
    steam
    steam
    steam
    coffee
    phone
    keyboard

    Keeping you safe online

    • When you use Clef, you create a profile that never leaves your phone.
    • Clef uses that profile to generate a new digital signature every time you log in.
    • Sync with Clef Wave to send your signature and identify yourself.
    tell me more
    key
    Private Key
    lock
    Public Key

    Distributed architecture

    • The Clef app generates a public and private key. The private key stays on the phone to generate signatures that uniquely identify you.
    • With all the important details distributed to your phone, nothing in the Clef database can compromise your identity.
    tell me more
    1
    2
    3
    server
    envelope arrow
    phone
    server
    server
    envelope arrow
    browser

    How your data moves

    • After you sync the Clef Wave, your digital signature is sent to Clef.
    • Clef verifies the signatures and connects to the site's server using OAuth 2.0.
    • You're logged in!
    still need more?

    Want Clef on your site?

    If you need more info before you get started, fill out this form and we'll be in touch.
    1. Click this button to log in.

    2. Sync with this Clef Wave.