2FAS (2FA Authenticator App). Protect your accounts and online services.

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Protect your online accounts with an extra layer of security.

Today, a single password for your online accounts often isn’t enough to protect your sensitive information.

2FAS is the easiest way to enable two-factor authentication to verify your identity and securely login to accounts with Time-based One-time Passwords (TOTP) to keep your personal data and passwords protected from cyber threats — all from one app, 100% free!

Protect your online accounts with an extra layer of security.
Protect your online accounts with an extra layer of security.

... and many more.

Protect your personal and work data today

Don't wait until it’s too late. Protect your personal and work data today.

If you use online accounts for social media, banking, or email — then you are always at risk of having your identity stolen or accounts hacked. The good news is that you can protect access to your accounts with two-factor authentication that keeps your accounts under your control.

To get started, simply download the 2FAS Authenticator app and connect your accounts by following our simple video tutorial.

See how it works

The world’s most secure, private and simple
2FA app.



  • 2FAS syncs across your mobile devices.
  • An interface designed for simplicity.
  • One-tap authentication with 2FAS Browser Extensions.
  • Multi language support.
  • Quick guides for setup and support. (Coming soon)


  • Easily restore your tokens with backups.
  • Add app protection with your passcode or biometrics.
  • 2FAS is open source, transparent and community-driven.


  • 2FAS works offline.
  • 2FAS doesn't store any passwords or metadata.
  • 100% anonymous use, no account required.

If you want to learn more about 2FAS and other popular apps, check 2FAS comparisons with Microsoft Authenticator, Google Auth, Duo and Authy.


Driven by community, built to protect your privacy.

Every 2FAS community member puts in an effort to develop the 2FAS project.

Contribution in the project does not only base on code review and new commits. We draw on our active community to:

  • Crowdsource translations.
  • Support users by helping them on 2FAS Discord server.
  • Update databases with service icons.
  • And much more!

We invite everyone to share their experiences, knowledge and ideas to help 2FAS project make a real and positive change in digital authentication and online security.

2FAS open source app is and
always will be
free to use.

You can donate to the 2FAS project to support our work.

2FAS always be free to use2FAS always be free to use2FAS Welcome

Why people love 2FAS


AppStore avg. rating based on

44 064 reviews worldwide

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Google Play avg. rating based on

27 936 reviews worldwide

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Take control of your online security

Together with our amazing community, we strongly encourage you to take action by protecting your online services with the 2FAS app and help us continue our mission by donating and contributing to the 2FAS open source project.


Download and try 2FAS Android or iOS app.


Donate 2FAS open source project.


Contribute on Github and Discord.