Top 12 Open-Source Alternatives to Duo Security

Duo Security

Duo Security provides cloud-based two-factor authentication. Duo’s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.

31 mentions

Post a review

Add video

Pricing:

Official Pricing

Visit website Status Page

Verify Duo Security Edit

Product categories

Authentication Authorization Cyber Security Endpoint Security Identity And Access Management Identity Provider Multi-factor Authentication Password Management SAML SSO Security & Privacy Two Factor Authentication

Summary

The top open-source alternatives to Duo Security are Auth0, LoginTC, and Keycloak. 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 179 social mentions
LoginTC Landing Page
2

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
Keycloak Landing Page
3

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
SoloKeys Landing Page
4

SoloKeys

Secure login made open and easy 🔒
Pricing:
- Open Source
#Identity And Access Management #Two Factor Authentication #Authentication 27 social mentions
Let's Encrypt Landing Page
5

Let's Encrypt

Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).
Pricing:
- Open Source
#Identity And Access Management #Two Factor Authentication #Security & Privacy 312 social mentions
Authenticator Landing Page
6

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
privacyIDEA Landing Page
7

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
Nitrokey Landing Page
8

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
ZITADEL Landing Page
9

ZITADEL

Identity infrastructure, simplified for you.
Pricing:
- Open Source
- Freemium
- $100.0 / Monthly (1'000 Daily Active Users included)
#Cyber Security #Identity And Access Management #Authentication 15 social mentions
OTP Auth Landing Page
10

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
JSON Web Token Landing Page
11

JSON Web Token

JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.
Pricing:
- Open Source
#Identity Provider #Identity And Access Management #SSO 277 social mentions
Authenticator.cc Landing Page
12

Authenticator.cc

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