Auth0 handles login, sessions, social providers, SAML for enterprise customers, and the password reset email nobody wants to build a second time. It is the shortcut when a prospect's IT department asks for SSO and you have two weeks, because the hosted login page means you are not writing credential handling yourself, and the first integration is mostly configuration rather than a project.
Who it is for
Product teams that need SSO and MFA without building an identity service.
Key features
- Hosted login with social providers
- SAML and OIDC for enterprise SSO
- Multi-factor authentication policies
- User management API and SDKs
- Actions for custom login logic
Where it falls short
Pricing scales with monthly active users and enterprise connections, so the bill jumps sharply as you grow, and leaving later means exporting password hashes and rebuilding every flow by hand.
Pricing
Free tier for a small monthly-active-user count; paid tiers scale with MAU, and SAML connections cost extra.
Prices move; the tier structure is the part that stays true. Check current pricing on Auth0.
Alternatives to Auth0
Frequently asked
Is Auth0 free?
Partly. Free tier for a small monthly-active-user count; paid tiers scale with MAU, and SAML connections cost extra.
What is Auth0 best for?
Product teams that need SSO and MFA without building an identity service.
What are the best alternatives to Auth0?
The closest substitutes we list are Cloudflare Zero Trust, Supabase and 1Password. They sit in a similar price bracket but make a different trade-off, so read the weaknesses section of each review before switching.
Which platforms does Auth0 run on?
Auth0 is available on Web and API.