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About

2FAS is a two-factor authentication and password management platform centered on its open-source 2FAS Authenticator app, which helps users add a strong second layer of login security to online accounts by generating time-based and event-based one-time codes that refresh frequently to defend against unauthorized access, making it easier to secure email, social, financial, and other services that support 2FA. It is designed to be simple, private, and secure, it works offline, does not store passwords or usage metadata, and doesn’t require users to create an account, offering anonymous use while still syncing codes across multiple mobile devices with encrypted backup options, biometric or PIN protection, and support for importing and exporting authentication seeds so you retain control of your data and can migrate between devices or apps.

About

Proton Authenticator is a privacy-first two-factor authentication app that generates time-based one-time passwords to add an extra layer of login security for online accounts beyond just a password, so users can secure accounts across all their devices. It is open source and uses end-to-end encryption, meaning all cryptographic operations and secret keys are generated and stored locally, and even Proton cannot see your unencrypted 2FA data, offering transparency and strong privacy by design. Users can sync 2FA codes across devices with encrypted backups (including via iCloud or a Proton Account), import existing codes from other authenticator apps, and export them if needed, giving flexibility and control over 2FA secrets without vendor lock-in. Proton Authenticator is free to use, has no ads or tracking, and supports secure practices like biometric locks and offline access, so users can generate login codes.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Individuals who want a free, secure, privacy-focused two-factor authentication app to protect online accounts with time-based login codes without tracking, ads, or centralized accounts

Audience

Anyone who wants a private, open source, cross-device two-factor authentication app that secures logins with time-based one-time codes

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

2FAS
Founded: 2015
United States
2fas.com

Company Information

Proton
Founded: 2014
Switzerland
proton.me/authenticator

Alternatives

Alternatives

Aegis Authenticator

Aegis Authenticator

Beem Development
Aegis Authenticator

Aegis Authenticator

Beem Development
Proton Pass

Proton Pass

Proton AG
Proton Meet

Proton Meet

Proton

Categories

Categories

Integrations

2FAS Pass
Brave Browser
Google Chrome
Microsoft Edge
Mozilla Firefox
Opera
Safari
iCloud

Integrations

2FAS Pass
Brave Browser
Google Chrome
Microsoft Edge
Mozilla Firefox
Opera
Safari
iCloud
Claim 2FAS Auth and update features and information
Claim 2FAS Auth and update features and information
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