2FAuth

A web based, open-source, self-hosted two factor authentication app.

Open Source Self-Hostable Free of Charge Privacy Friendly Works Offline Ad-Free
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Description

2FAuth is a self-hosted, open-source two-factor authentication (2FA) manager designed to put you in control of your digital security. Unlike proprietary solutions that lock your 2FA codes behind closed platforms, 2FAuth stores all your authentication secrets locally on your own server. This ensures your data remains private, free from third-party analytics, data mining or the risk of service shutdowns.

As a web-based application, 2FAuth works seamlessly on both desktop and mobile devices, offering a modern, responsive interface for managing and generating security codes. It supports standard protocols like TOTP and HOTP, making it compatible with most services that require 2FA.

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Sustainability Features of 2FAuth

Open Source - Free and Open-Source Software

2FAuth is fully open-source, allowing users to inspect, modify and contribute to its codebase.

Self-Hostable - Services that can be hosted by users, giving full control over data and enhancing privacy.

2FAuth is designed to be self-hosted, giving users full control over their 2FA data and infrastructure.

Free of Charge - The services provided can be used for free.

There are no fees associated with using 2FAuth apart from what's paid for hosting.

Privacy Friendly - It does not track users unnecessarily.

All 2FA codes are stored locally on your server, ensuring no data is sent to corporate clouds or third parties

Works Offline - Works even without internet connection

If hosted on your own device, 2FAuth could be used without internet connection.

Ad-Free - Services that do not display advertisements to users, ensuring a cleaner and more private experience.

2FAuth is ad-free, providing a clean and uninterrupted user experience.

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Summary

2FAuth is an open-source, self-hosted 2FA manager that prioritizes privacy and user control. It stores 2FA codes locally on your server, avoiding third-party data risks. Accessible via web browser, it supports TOTP, HOTP and Steam Guard codes, and is designed to be easy to set up and use.

Sustainability Score
94

More Sustainable Alternatives for Two Factor Authentication

Aegis Authenticator

An open-source authenticator app, storing all data locally only.

Aegis does not collect or transmit user data to external servers. All data remains on the user’s device, ensuring privacy.
Aegis is ad-free, providing a clean and uninterrupted user experience.
Aegis is free and open-source software (FOSS), allowing users to inspect, modify and contribute to its codebase.
No user registration or account creation is required to use Aegis, enabling anonymous usage.
Aegis is available for free, with no mandatory premium features or subscriptions.
Aegis functions entirely offline, as it does not rely on cloud synchronization or internet connectivity for core features.
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Ente Authenticator

A two factor authenticator app, offering encrypted cloud synchronisations as a paid service.

Ente Authenticator prioritizes user privacy by encrypting all data and ensuring only the user can access their authentication codes.
Ente Authenticator functions offline for generating 2FA codes, though cloud sync requires an internet connection.
The app is ad-free, providing a clean and focused user experience.
Ente Authenticator does not require registration to use its core functionality for generating and storing 2FA codes locally. However, if you wish to use the optional end-to-end encrypted cloud sync, you need to create an Ente account.
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Suggestions and Feedback

If you have suggestions for more alternatives or general feedback, please contact me via email or create an issue over on Codeberg. Suggest Substitute on Codeberg Write an Email