# Universal Login

Implement robust [authentication](/content/platform/authentication/index.html) flows, feature-rich branding, and a variety of login methods — all under one roof.

[Build your login](/content/docs/authenticate/login/auth0-universal-login/index.html)

[Explore more](/content/features/universal-login/index.html)

# Single Sign-On

Enable users to log in once for access to all apps, be it enterprise federation, social logins, or user/pass setups.

[Single sign-on options](/content/docs/authenticate/single-sign-on/index.html)

[Explore more](/content/features/single-sign-on/index.html)

# MFA

Implement an adaptable and seamless multi-factor authentication (MFA) experience that maximizes security without compromising user experience.

[Define your authentication factors](/content/docs/secure/multi-factor-authentication/index.html)

[Explore more](/content/features/multifactor-authentication/index.html)

# Actions

Explore our suite of serverless developer tools to extend and enhance your Identity ecosystem.

[Build your login flow](/content/docs/customize/actions/index.html)

[Explore more](/content/features/actions/index.html)

# Machine to Machine

Bridge the gap between devices and services through secure, automated exchanges. Whether it's IoT or background processes, ensure the integrity of data.

[Integrate with machine-to-machine applications](/content/docs/get-started/auth0-overview/create-applications/machine-to-machine-apps/index.html)

[Explore more](/content/features/machine-to-machine/index.html)

# Passwordless

Make your login flow seamless with Passwordless.

[Implement passwordless](/content/docs/authenticate/passwordless/index.html)

[Explore more](/content/features/passwordless/index.html)

# Breached Passwords

Protect your users' credentials with rigorous checks, proactive alerts, and extensive security.

[Detect and prevent malicious attacks](/content/docs/secure/attack-protection/index.html)

[Explore more](/content/features/breached-passwords/index.html)

# Highly Regulated Identity

Secure sensitive customer interactions while maintaining compliance and intuitive user experiences.

[Elevate security and privacy for sensitive scenarios](/content/docs/secure/highly-regulated-identity/index.html)

[Explore more](/content/features/highly-regulated-identity/index.html)

Now generally available

## Forms

The newest feature of [Extensibility](/content/platform/extensibility/index.html). Forms empowers developers and marketers with a no-code visual editor to [orchestrate, customize, and secure signup](/content/docs/customize/forms/index.html) and login flows to meet their unique needs.

[Learn more](/content/features/forms/index.html)

# Unlock a lot more value from your login

Get your free guide to learn all about how Auth0 can help you do more.

[Get the guide](/content/resources/ebooks/why-auth0-by-okta/index.html)

## Resources

[Docs\ **Get Started with Auth0**](/content/resources/ebooks/why-auth0-by-okta/index.html) [Whitepaper\ **Build vs Buy: Guide to Identity Management**](/content/resources/whitepapers/build-vs-buy-evaluating-identity-management/index.html) [Video\ **The Auth0 Product Tour**](/content/resources/videos/platform-introduction-video-2020/index.html)

## Start building for free

Get started