Keycloak vs Auth0 Comparison
Keycloak
Starting at Contact for pricing
- Medium Business
- Small Business
Keycloak is a thin identity and access management layer (IAM) for modern applications. Keycloak is built to handle enterprise needs and offer a simple experience to developers, it protects identities with strong two-fact…
Auth0
Starting at Contact for pricing
- Free Trial
- Freelancers / Consultants
- Large Enterprises
Auth0 helps business use identity to secure the APIs and mobile apps, add single sign-on, deploy confidential digital credentials for the users, and connect customers to the cloud applications they need. The extensible p…
Keycloak leads on user satisfaction with a 4.3-star rating across 80 reviews.
Keycloak vs Auth0 — at a glance
| Feature | Keycloak | Auth0 |
|---|---|---|
| Rating | 4.3 / 5 | 4.0 / 5 |
| Reviews | 80 | 160 |
| Starting price | Contact for pricing | Contact for pricing |
| Free trial | No | Yes |
| Free version | No | No |
| Best for | Medium Business, Small Business | Freelancers / Consultants, Large Enterprises, Medium Business |
| Category | Identity and Access Management (IAM) Software | Customer Identity and Access Management (CIAM) Software |
| Platforms | SaaS/Web/Cloud | SaaS/Web/Cloud, Mobile - Android, Mobile - iOS |
| API | Available | Available |
| Support modes | Online | Business Hours, Online |
| Certifications | GDPR | SOC 2, HIPAA, GDPR, ISO 27001 |
| Data residency | Global | Global |
Key differences between Keycloak and Auth0
- Free trial: Auth0 offers a free trial; Keycloak does not.
- Target audience: Keycloak is built for Medium Business and Small Business, while Auth0 targets Freelancers / Consultants and Large Enterprises.
- User satisfaction: Keycloak scores higher with a 4.3-star average.
- Deployment: Keycloak supports SaaS/Web/Cloud; Auth0 supports SaaS/Web/Cloud, Mobile - Android, Mobile - iOS.
Keycloak vs Auth0 — find the better fit before you commit.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Identity and Access Management (IAM) Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
Biggest differences
Start here before you go deeper into features.
Open-source IAM ideal for enterprises needing strong security and developer flexibility.
- You need robust multi-factor authentication and fine-grained access control.
- Your team includes developers and IT admins comfortable with medium-complexity setup.
- You want a flexible, configurable IAM solution tailored for modern applications.
- Your organization requires turnkey solutions with comprehensive commercial support and SLAs.
- You are a very small business with minimal identity management needs.
Best for securing APIs and mobile apps with flexible identity management.
- You need a comprehensive CIAM platform supporting multiple identity providers.
- Your team requires strong multifactor authentication and password management features.
- You want seamless integration with cloud applications and single sign-on capabilities.
- Your organization prefers on-premises identity solutions over cloud-based platforms.
- You are a very small team or freelancer seeking a simple, low-complexity tool.
Keycloak: Open-source IAM ideal for enterprises needing strong security and developer flexibility. Auth0: Best for securing APIs and mobile apps with flexible identity management.
Description | Keycloak is a thin identity and access management layer (IAM) for modern applications. Keycloak is built to handle enterprise needs and offer a simple experience to developers, it protects ... Read More about Keycloak | Auth0 helps business use identity to secure the APIs and mobile apps, add single sign-on, deploy confidential digital credentials for the users, and connect customers to the cloud ... Read More about Auth0 |
|---|---|---|
Free Trial Availability |
|
|
Spotsaas ScoreWhat's this? ↗ | 8.7/10 | Not Available |
User RatingsBased on verified Spotsaas reviews | ||
Best Company Size | 50 to 500 employees501 to 5,000 employees | Small BusinessLarge Enterprises |
Get pricing help | Get pricing help |
Where each option fits best
See where each product is strongest, which teams it fits, and what causes buyers to keep looking — before you commit.
Based on buyer reviews and verified product data collected by Spotsaas.
Key strengths
- Streamlined Identity Management: Keycloak simplifies user authentication and authorization processes, enabling your team to focus on core business objectives without the hassle of managing complex identity systems.
- Single Sign-On (SSO) Convenience: With Keycloak's SSO capabilities, your users enjoy seamless access across multiple applications with just one set of credentials. This not only enhances user satisfaction but also reduces password fatigue.
- Robust Security Features: Built with security in mind, Keycloak offers features like multi-factor authentication and fine-grained access control, helping you protect sensitive data and comply with industry standards.
No key benefits available yet.
Best fit
Reasons buyers look elsewhere
- Users may seek alternatives to Keycloak due to its complexity in setup and configuration, particularly for smaller teams or projects that require a more straightforward identity management solution.
- Some organizations might prefer alternatives that offer better integration with specific cloud services or platforms, especially if they are heavily invested in a particular ecosystem.
- Performance concerns could lead users to explore other options, particularly if they experience scalability issues or latency with Keycloak in high-demand environments.
No alternatives guidance available yet.
Software Demo
Demo |  Keycloak has not given any software demo yet If you're the owner of this profile, add your demo.Contact us |
|---|
Need a second opinion?
Get shortlist help from a software advisor
Share your priorities, budget, and team needs, and we’ll help you narrow the options and understand the tradeoffs before you talk to vendors.
How do Keycloak and Auth0 Compare on Features?
Total Features | 9 Features | 14 Features |
|---|---|---|
Unique Features | No unique features | No unique features |
Get Quote | Get Quote |
Compare Keycloak and Auth0 on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
Pricing Option | ||
|---|---|---|
Pricing Plans |
|
|
Pricing Page | Pricing information not available |  |
Other Details
Organization Types supported |
|
|
|---|---|---|
Platforms Supported |
|
|
Modes of support |
|
|
API Support |
|
|
Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
SOC 2 | — | ✓ Yes |
|---|---|---|
HIPAA | — | ✓ Yes |
GDPR | ✓ Yes | ✓ Yes |
ISO 27001 | — | ✓ Yes |
Single Sign-On (SSO) | ✓ Yes | ✓ Yes |
Multi-Factor Auth (MFA) | ✓ Yes | ✓ Yes |
Data Encryption | ✓ Yes | ✓ Yes |
Audit Logs | ✓ Yes | ✓ Yes |
Data Residency | 🌐 Global | 🌐 Global |
Keycloak User Reviews & Rating Comparison
User Ratings | ||
|---|---|---|
Rating Distribution | ||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Users generally appreciate Keycloak's strong security features and flexible identity management, though some find setup and support challenging. What buyers like
Common complaints
| Buyer sentiment Users generally appreciate Auth0's robust identity features and flexibility but note pricing opacity and complexity as challenges. What buyers like
Common complaints
|
Pros and Cons |
|
|
Positive Reviews | No reviews available for the product | No reviews available for the product |
Media and Screenshots
Screenshots |  6 Screenshots |  1 Screenshots |
|---|---|---|
Videos | No videos available. |  2 Videos |
Top Alternatives to Keycloak and Auth0 in 2026
Alternatives |
|---|
Add another option to compare side by side
Search by product name to compare pricing, fit, and buyer feedback in one view.Compare similar software options
Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, Keycloak or Auth0?
- Keycloak edges out the other on user ratings (4.3 vs 4.0). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Keycloak and Auth0 offer a free trial?
- Auth0 offers a free trial. Keycloak does not.
- What is the starting price of Keycloak vs Auth0?
- Keycloak starts at Contact for pricing. Auth0 starts at Contact for pricing.
- What are the top alternatives to Keycloak?
- Top alternatives to Keycloak include Okta, Oracle Identity Management, Cognito, SailPoint IdentityIQ, AWS IAM.
- What are the top alternatives to Auth0?
- Top alternatives to Auth0 include Cognito, Keycloak, Omada CIAM, LoginRadius, Ubisecure CIAM.