A detailed comparison of Auth0 and Keycloak to help you choose the right tool for your needs.
Flexible authentication and authorization platform for developers.
| Plan | Auth0 | Keycloak |
|---|---|---|
| Free Tier | ✓ Up to 7,500 active users | ✓ Fully open source |
| Lowest Paid | $23/mo | Free (self-hosted) |
| Enterprise | Custom pricing | Red Hat SSO (paid) |
| Feature | Auth0 | Keycloak |
|---|---|---|
| Universal Login | ✓ | — |
| Social Connections | ✓ | — |
| Passwordless Auth | ✓ | — |
| MFA | ✓ | — |
| Machine-to-Machine Auth | ✓ | — |
| Anomaly Detection | ✓ | — |
| SSO | — | ✓ |
| Identity Brokering | — | ✓ |
| Social Login | — | ✓ |
| User Federation | — | ✓ |
| Admin Console | — | ✓ |
| LDAP/AD Integration | — | ✓ |
| Open Source | ✗ | ✓ |
| Rating | ⭐ 4.3 | ⭐ 4.2 |
Choose Auth0 if: You need developers needing flexible authentication. Auth0 excels with its developer-friendly sdks and generous free tier.
Choose Keycloak if: You need organizations wanting self-hosted open-source identity management. Keycloak stands out with its fully open source and feature-complete iam.
Best free option: Both Auth0 and Keycloak offer free tiers. Auth0 offers "Up to 7,500 active users" while Keycloak offers "Fully open source".
It depends on your needs. Auth0 is better for developers needing flexible authentication, while Keycloak is better for organizations wanting self-hosted open-source identity management. Both are excellent tools rated 4.3 and 4.2 respectively.
Auth0 starts at $23/mo while Keycloak starts at Free (self-hosted). Both offer free tiers.
Most tools offer import/export features to help you migrate. We recommend trying Keycloak's free tier before fully committing to a switch.
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