Top 12 Open-Source Alternatives to Google Authenticator

The top open-source alternatives to Google Authenticator are Auth0, Authenticator, and LoginTC. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Auth0 Landing Page
1

Auth0

Auth0 is a program for people to get authentication and authorization services for their own business use.
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #SSO 175 social mentions
Authenticator Landing Page
2

Authenticator

Authenticator is a simple, free, and open source two-factor authentication app.
Pricing:
- Open Source
#Identity And Access Management #Two Factor Authentication #Password Management 4 social mentions
LoginTC Landing Page
3

LoginTC

Simply Strong Two-Factor Authentication LoginTC is best in class. Effortless Administration. Intuitive User Experience. Cost-effective solution for all organizations.
Pricing:
- Open Source
- Freemium
- Free Trial
- $3.0 / Monthly (Professional Tier)
#Identity And Access Management #Two Factor Authentication #Authentication
privacyIDEA Landing Page
4

privacyIDEA

privacyIDEA is an enterprise ready, open-source multi factor authentication system.
Pricing:
- Open Source
#Identity And Access Management #Two Factor Authentication #Authentication 1 social mentions
SoloKeys Landing Page
5

SoloKeys

Secure login made open and easy 🔒
Pricing:
- Open Source
#Identity And Access Management #Two Factor Authentication #Authentication 27 social mentions
Nitrokey Landing Page
6

Nitrokey

Email Encryption. Encrypt your emails with GnuPG, OpenPGP, S/MIME or your favourite email client.
Pricing:
- Open Source
#Identity And Access Management #Two Factor Authentication #Authentication 1 social mentions
OTP Auth Landing Page
7

OTP Auth

The app for calculating one-time-passwords on iPhone and iPad.
Pricing:
- Open Source
#Identity And Access Management #Password Management #Two Factor Authentication 11 social mentions
Keycloak Landing Page
8

Keycloak

Open Source Identity and Access Management for modern Applications and Services.
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #SSO 4 social mentions
ente Landing Page
9

ente

ente is a cloud based mobile and desktop photo storage app with a focus on security and privacy.
Pricing:
- Open Source
#Photos & Graphics #Photo Gallery #Cloud Storage 69 social mentions
Authenticator.cc Landing Page
10

Authenticator.cc

Authenticator generates 2-Step Verification codes in your browser.
Pricing:
- Open Source
#Identity And Access Management #Tech #Password Management 17 social mentions
Tofu Authenticator Landing Page
11

Tofu Authenticator

Tofu Authenticator is an open-source easy to use two-factor authentication app that lets you secure your accounts with one-time passwords.
Pricing:
- Open Source
#Security & Privacy #Identity And Access Management #Password Management 1 social mentions
FreeIPA Landing Page
12

FreeIPA

FreeIPA is an integrated security information management solution combining Linux (Fedora), 389...
Pricing:
- Open Source
#Identity And Access Management #Cloud Computing #Cloud Storage