2FA methods supported by Gmail
Adding two-factor authentication is one of the most effective ways to protect your Gmail account. With TOTP support, you can generate Gmail verification codes directly in the Authenticator App.
SMS
Gmail can send a one-time verification code to your phone via text message.
Phone call
Gmail can call your phone and read out a verification code.
Authenticator app (TOTP)
Gmail lets you use time-based one-time passwords, so you can generate verification codes in an authenticator app on your device — no network or SMS needed.
Proprietary app
Gmail offers its own companion app for approving sign-ins.
Security key (U2F)
Gmail works with hardware security keys using the U2F/FIDO standard.
Gmail 2FA — Frequently asked questions
Does Gmail support an authenticator app?
Yes. Gmail supports time-based one-time passwords (TOTP), so you can add it to the Authenticator App and generate verification codes right on your device.
Which two-factor authentication methods does Gmail support?
Gmail currently supports: SMS, Phone call, Authenticator app (TOTP), Proprietary app, Security key (U2F).
Is it free to generate Gmail codes with the Authenticator App?
Yes. The Authenticator App is free to download, and generating Gmail verification codes does not require an account or sign-up.
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