Is Proton Authenticator free?

Proton Authenticator is completely free to use on all platforms. No ads and no tracking.

Can I import my 2FA codes from other authenticator apps?

Yes, Proton Authenticator supports easy import from various authenticator apps including Google authenticator, 2FAS, Aegis Authenticator, Bitwarden Authenticator, Ente Auth, LastPass Authenticator. You can also export your codes from Proton Authenticator.

Do I need a Proton Account?

No, you can use Proton Authenticator without an account. If you do have a Proton Account, you can sync your codes securely across devices. They’re protected by end-to-end encryption, so nobody but you can access them.

What if I lose my phone or switch devices?

Proton Authenticator supports encrypted backups when using your Proton Account or on iOS. you can also export your codes to an additional secure location of your choice.

Is Proton Authenticator open source?

Yes. all Proton apps, including Proton Authenticator, are fully open source. Anyone can inspect and verify our code.

How is this different from Proton Pass?

Proton Pass is a password manager designed to securely generate and store strong passwords, and protect your digital identity with features like email aliases and dark web monitoring. It also includes an integrated authenticator that can store and autofill 2FA codes - but not the ones used to log in to your Proton account. Proton Authenticator is a standalone 2FA app that allows users to enable 2FA protection for their Proton account, it also allows users to store their 2FA codes separate from their passwords if they wish to do so.

2FA Proton Authenticator

Open source two factor authentication app for iPhone, iPad, iPod, Apple Watch, Mac, Android, Linux and Windows. Securely sync and easily back up your 2FA codes.

Built by Proton

100M+

Secure access on every device

Secure, open source, standalone, and free to use

Some of the features of our Authenticator, designed to keep your access secure, seamless, and always within reach.

Secure logins instantly

Start using Proton Authenticator right away. No account signup, phone number, or email address needed.

Use on any device

Access your 2FA codes on Windows, Mac, iOS, Android, or Linux, even without an internet connection.

Control your codes

You stay in control of your 2FA codes with end-to-end encrypted backups. Nobody else can access them.

Unlock with biometrics

Get instant access to your vault with face or fingerprint unlock. No typing, no friction, and strong security.

Find codes easily

No more scrolling through endless lists. Find any account in seconds with custom icons and search.

See the next code

Proton Authenticator shows you the next code so you can already start using it before the clock runs out.

Explore our security model

How Proton Authenticator works

Just download the app, scan your QR codes or import existing codes, and you’re set. You don’t need a Proton Account to use it.

Step 1

Download the authenticator app

Get Proton Authenticator for your device. You can sign in to your Proton Account if you want to sync 2FA codes across your devices, but login isn’t required.

Step 2

Enable 2FA on your accounts

When you enable 2FA on an account, the website or app will provide you with a QR code or a secret key. Scan the QR code or enter the key into Proton Authenticator. You can also import tokens from another authenticator.

Step 3

Use codes to securely log in

Proton Authenticator will generate a new 6-digit code every few seconds. When logging in to an account, enter the code as an extra layer of security.

What do our users say about authenticator?

ceantuco

I installed 2FAS; however, i hated the fact that they did not have a desktop app. So I switched to Proton Authenticator. honestly, I like 2FAS GUI better than Proton's but having a desktop app is important for me.
I still have 2FAS installed on my phone and use it once in a while lol

Kieran Whatley

Extremely good app. it lets me use it in a floating window so I can easily see the code I need. The interface is clean and easy to understand, with the ability to add codes being in a nice and easy plus button. I would rather rate it 4.5 not 5, but I can't do half stars. the loss of the 0.5 star is just because I would like to be able to set my own icon as one of my codes does.

Jacob Feece

Essentially the same to Google Authenticator with way more security, customization, privacy, and many other features. Also LOVE the fact that I can transfer from common authenticator app, making the change be quick, easy, and obvious. Most of my codes came from Google Auth, but I wish Authy had the ability to transfer.

almonds2024

The proton authenticator does not require anyone to actually be logged in their account. This is only relevant if you want to sync account devices. As long as have the device download on your phone, you can access the codes without logging into anything.

Popular-Lead-3008

Proton Authenticator. I find the best one

soldier1st

OP: 2FAS is limited to saving your 2fa codes to google drive. I would use proton authenticator.

What is an authenticator app?

Two-factor authentication (2FA) adds a second layer of login security to your accounts, in addition to your password. Even if hackers know your password, they can’t access your account without this second code. An authenticator app generates one-time codes right on your device — safer and quicker than having codes sent by email or SMS.

Proton Authenticator is an open source and end-to-end encrypted 2FA app that’s simple and free to use. It is available on all platforms, including desktop. Easily sync or back up your 2FA codes so you never lose access to your accounts.

Learn about our security

The authenticator that puts you first

Other authenticator apps focus on locking you into Big Tech ecosystems or serving you ads. Proton Authenticator is different. It has no ads, no trackers, and is open source, so you can verify its code. See how easy 2FA can be when your security and privacy are the priority.

Compare Lumo with:

Comparison table between Proton Authenticator, Google Authenticator, Authy, Microsoft Authenticator, Duo
	Proton Authenticator	Google Authenticator	Authy	Microsoft Authenticator	Duo
Open source	Yes	No	No	No	No
Encrypted sync	Yes	No	Yes	Yes	Yes
No ads or tracking	Yes	No	No	No	Yes
Platform availability	Android, iOS, Windows, Mac, Linux	Android, iOS	Android, iOS	Android, iOS	Android, iOS
Widgets	Yes	No	Yes	No	Yes
Direct export	Yes	Yes	No	No	No
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Download for all your devices

Use Proton Authenticator on mobile and desktop. Sync your codes securely across devices with your Proton account for easy access. Or back them up locally or in the cloud for safe keeping. It’s your choice.

Download now

Entrust your 2FA with a privacy-first provider

Proton Authenticator is built by the team behind Proton Mail.

With open-source code, end-to-end encryption, and no data collection, it’s a 2FA app you can actually trust.

Founded in 2014, Proton is owned by a nonprofit dedicated to building a better internet where privacy is the default.

Discover Proton

Unlock full account security with Proton Pass

Log in to your accounts quickly and safely, create email aliases to protect your privacy, and monitor the dark web to see if your data has been breached. Take greater control of your account security with our password manager, Proton Pass.

Get Proton Pass

Frequently asked questions

Is Proton Authenticator free?: Proton Authenticator is completely free to use on all platforms. No ads and no tracking.
Can I import my 2FA codes from other authenticator apps?: Yes, Proton Authenticator supports easy import from various authenticator apps including Google authenticator, 2FAS, Aegis Authenticator, Bitwarden Authenticator, Ente Auth, LastPass Authenticator. You can also export your codes from Proton Authenticator.
Do I need a Proton Account?: No, you can use Proton Authenticator without an account. If you do have a Proton Account, you can sync your codes securely across devices. They’re protected by end-to-end encryption, so nobody but you can access them.
What if I lose my phone or switch devices?: Proton Authenticator supports encrypted backups when using your Proton Account or on iOS. you can also export your codes to an additional secure location of your choice.
Is Proton Authenticator open source?: Yes. all Proton apps, including Proton Authenticator, are fully open source. Anyone can inspect and verify our code.
How is this different from Proton Pass?: Proton Pass is a password manager designed to securely generate and store strong passwords, and protect your digital identity with features like email aliases and dark web monitoring. It also includes an integrated authenticator that can store and autofill 2FA codes - but not the ones used to log in to your Proton account. Proton Authenticator is a standalone 2FA app that allows users to enable 2FA protection for their Proton account, it also allows users to store their 2FA codes separate from their passwords if they wish to do so.