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AWS Cognito vs Keycloak

Side-by-side comparison of AWS Cognito and Keycloak. Data-driven analysis for CTOs and engineering leaders.

Technical Profile

AWS Cognito

Scalability
very high
Performance
very high
Learning Curve
steep
Maturity
mature
Languages: Any via SDK

Keycloak

Scalability
high
Performance
high
Learning Curve
steep
Maturity
mature
Languages: Java

When to Use

AWS Cognito

  • +AWS-centric architecture
  • +Serverless applications
  • +Large scale needs
  • +Existing AWS investment

Avoid AWS Cognito when

  • -Multi-cloud strategy
  • -Simple auth needs
  • -Limited AWS expertise

Keycloak

  • +Need self-hosted auth
  • +Want no vendor lock-in
  • +Enterprise SSO required
  • +Budget constraints

Avoid Keycloak when

  • -Limited ops resources
  • -Want managed solution
  • -Simple auth needs
  • -Quick time to market

Compliance & Security

AWS Cognito

SOC 2GDPRHIPAAPCI-DSS

Security Features

EncryptionAudit LogsRBACMFA

Keycloak

SOC 2GDPRHIPAAPCI-DSS

Security Features

EncryptionAudit LogsRBACMFA

Operations

AWS Cognito

Maintenance
low
Monitoring
medium
Backup/Recovery
simple
Hosting: cloud

Keycloak

Maintenance
high
Monitoring
medium
Backup/Recovery
moderate
Hosting: self-hosted, managed

Frequently Asked Questions

How does scalability compare between AWS Cognito and Keycloak?

AWS Cognito offers very-high scalability, while Keycloak offers high scalability. Consider your expected traffic and data volume when choosing.

Which has the easier learning curve: AWS Cognito or Keycloak?

AWS Cognito has a steep learning curve, while Keycloak has a steep learning curve. Factor in your team's existing skills and onboarding timeline.

What are the pricing differences between AWS Cognito and Keycloak?

AWS Cognito uses a usage-based pricing model starting at Free tier 50k MAU, then $0.0055/MAU with a free tier. Keycloak uses a free pricing model with a free tier. Evaluate total cost of ownership including operational overhead.

Which option is better for compliance: AWS Cognito or Keycloak?

AWS Cognito supports SOC 2, GDPR, HIPAA, PCI-DSS. Keycloak supports SOC 2, GDPR, HIPAA, PCI-DSS. Always verify current certifications directly with the vendor.

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