---
canonical: https://thejudex.com/vs/auth0-vs-keycloak
title: Auth0 vs Keycloak
type: SoftwareComparison
updatedAt: 2026-10-29T19:47:57.995Z
---

# Technical Comparison: Auth0 vs Keycloak

> Auth0 is a cloud-managed IDaaS platform billed by Monthly Active Users (MAU), focused on rapid deployment via standardized SDKs. Keycloak is an open-source, Java-based self-hosted IAM solution offering complete infrastructure control without volume licensing costs, but requiring higher operational effort for high availability.

## Capabilities and Pricing Summary

| Dimension | Auth0 | Keycloak |
| :--- | :--- | :--- |
| Pricing Model | FREEMIUM | FREE |
| Starting Price | Free / Contact vendor | Free |
| Technical Rating | 4.5/5.0 | 4.6/5.0 |
| Verification | Verified | Verified |
| Markdown Card | [Auth0.md](https://thejudex.com/tool/auth0.md) | [Keycloak.md](https://thejudex.com/tool/keycloak.md) |

## Key Differentiators

- Cloud-managed IDaaS deployment model versus self-hosted on-premise or containerized.
- MAU-based cost structure in Auth0 compared to proprietary infrastructure in Keycloak.
- Native advanced support for Passkeys and SCIM in Auth0 versus deep customization in Keycloak.
- Proprietary SaaS commercial licensing versus open-source software under Apache 2.0.

## Switching Cost and Bidirectional Migration Friction (MFI)

| Migration Route | MFI Index (0-100) | Rating | Audited Critical Factors |
| :--- | :---: | :--- | :--- |
| From Auth0 to Keycloak | 70/100 | Alto Lock-in | Auth0 carece de exportación masiva nativa de datos documentada, lo que incrementa el riesgo de vendor lock-in.; Keycloak no expone API pública para sincronización automatizada, requiriendo importaciones manuales. |
| From Keycloak to Auth0 | 70/100 | Alto Lock-in | Keycloak carece de exportación masiva nativa de datos documentada, lo que incrementa el riesgo de vendor lock-in.; Auth0 no expone API pública para sincronización automatizada, requiriendo importaciones manuales. |

> MFI Verdict: La fricción de migración es simétrica (70/100 en ambas direcciones). Ambas plataformas exhiben barreras de cambio comparables en términos de exportación, APIs públicas y continuidad de credenciales.

## Technical Feature Matrix

| Feature | Auth0 | Keycloak |
| :--- | :---: | :---: |
| REST & GraphQL API | Yes | Yes |
| SSO / SAML Authentication | Yes | Yes |
| Self-Hosted Option | No | Yes |
| Full Data Export | Yes | Yes |
| Role-Based Access Control (RBAC) | Yes | Yes |
| Custom Domains & SSL | Yes | Yes |
| Immutable Audit Logs | Yes | Yes |

## Frequently Asked Questions

### Q: What is the main difference between Auth0 and Keycloak?
A: Auth0 is a cloud-managed IDaaS platform billed by Monthly Active Users (MAU), focused on rapid deployment via standardized SDKs. Keycloak is an open-source, Java-based self-hosted IAM solution offering complete infrastructure control without volume licensing costs, but requiring higher operational effort for high availability.

### Q: Which is more affordable, Auth0 or Keycloak?
A: Auth0 has a starting price of Free / Contact vendor, while Keycloak starts from Free.

## Canonical Resources

- Web Comparison: https://thejudex.com/vs/auth0-vs-keycloak
- AEO Markdown Format: https://thejudex.com/vs/auth0-vs-keycloak.md
- Profile of Auth0: https://thejudex.com/tool/auth0
- Profile of Keycloak: https://thejudex.com/tool/keycloak