Duo Security Alternatives

Google Authenticator is a multifactor app for mobile devices.

free

Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.

B2B SaaS: Make your app enterprise-ready! Authentication - SAML/OIDC SSO, Directory Sync (SCIM 2.0), Audit Logs, Data Privacy Vault, and more!

Try for free Open Source free $49.0 / Monthly (Per connection)

Enterprise-grade identity management for all your apps, users & devices

Azure Multi-Factor Authentication helps safeguard access to data and applications while meeting user demand for a simple sign-in process.

LastPass is an online password manager and form filler that makes web browsing easier and more secure.

On-demand SSO, directory integration, user provisioning and more

Auth0 is a program for people to get authentication and authorization services for their own business use.

Open Source

Idaptive delivers Next-Gen Access through a zero trust approach. Idaptive secures access everywhere with single sign-on, adaptive MFA, EMM and analytics.

Ping Identity provides cloud-based, single sign-on and identity management solutions with their SAML SSO.

Azure Active Directory is a comprehensive identity and access management cloud solution that provides a robust set of capabilities to manage users and groups and help secure access to applications including Microsoft online services like Office 365 …

Cloud-based directory services. Alternative to Microsoft Active Directory.

AuthPoint multi-factor authentication (MFA) provides the security you need to protect your assets, accounts, and information. Let your company work confidently and worry-free with the powerful protection of AuthPoint.

Keeper is a secure password manager and digital vault for businesses and individuals.