2FA methods supported by Mastodon
Adding two-factor authentication is one of the most effective ways to protect your Mastodon account. With TOTP support, you can generate Mastodon verification codes directly in the Authenticator App.
Authenticator app (TOTP)
Mastodon 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.
Security key (U2F)
Mastodon works with hardware security keys using the U2F/FIDO standard.
TOTP must be enabled to use a hardware token.
Mastodon 2FA — Frequently asked questions
Does Mastodon support an authenticator app?
Yes. Mastodon 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 Mastodon support?
Mastodon currently supports: Authenticator app (TOTP), Security key (U2F).
Is it free to generate Mastodon codes with the Authenticator App?
Yes. The Authenticator App is free to download, and generating Mastodon verification codes does not require an account or sign-up.
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