Keycloak vs FusionAuth 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…
FusionAuth
Starting at $37 /month
- Free Trial
- Individuals
- Freelancers / Consultants
FusionAuth is a Customer Identity and Access Management (CIAM) software solution for all industries looking to guard and secure their customers, employees, partners and contractors. Technology experts and small or large…
FusionAuth leads on user satisfaction with a 4.7-star rating across 38 reviews.
Keycloak vs FusionAuth — at a glance
| Feature | Keycloak | FusionAuth |
|---|---|---|
| Rating | 4.3 / 5 | 4.7 / 5 |
| Reviews | 80 | 38 |
| Starting price | Contact for pricing | $37 /month |
| Free trial | No | Yes |
| Free version | No | No |
| Best for | Medium Business, Small Business | Individuals, Freelancers / Consultants, Large Enterprises |
| Category | Identity and Access Management (IAM) Software | Customer Identity and Access Management (CIAM) Software |
| Platforms | SaaS/Web/Cloud | SaaS/Web/Cloud, Installed - Windows, Installed - Mac |
| API | Available | Available |
| Support modes | Online | 24/7 (Live rep), Business Hours, Online |
| Certifications | GDPR | SOC 2, GDPR |
| Data residency | Global | Global |
Key differences between Keycloak and FusionAuth
- Pricing: FusionAuth starts at $37 /month. Keycloak pricing is not publicly listed.
- Free trial: FusionAuth offers a free trial; Keycloak does not.
- Target audience: Keycloak is built for Medium Business and Small Business, while FusionAuth targets Individuals and Freelancers / Consultants.
- User satisfaction: FusionAuth scores higher with a 4.7-star average.
- Deployment: Keycloak supports SaaS/Web/Cloud; FusionAuth supports SaaS/Web/Cloud, Installed - Windows, Installed - Mac.
Keycloak vs FusionAuth — 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
Talk to an expert Talk to an expert |
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 enterprises needing flexible, secure, and comprehensive identity management.
- You require end-to-end identity management across mobile, web, and federated systems.
- Your organization needs to integrate identity data from multiple sources and directories.
- You want to reduce operational costs and minimize security breach risks effectively.
- Your company lacks dedicated IT or security resources to manage complex setups.
- You prefer simple, out-of-the-box identity solutions with transparent pricing.
Keycloak: Open-source IAM ideal for enterprises needing strong security and developer flexibility. FusionAuth: Best for enterprises needing flexible, secure, and comprehensive 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 | FusionAuth is a Customer Identity and Access Management (CIAM) software solution for all industries looking to guard and secure their customers, employees, partners and contractors. ... Read More about FusionAuth |
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Entry Level Pricing |
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Free Trial Availability |
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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
- 50 to 5,000 employees
- SaaS, Fintech, Healthcare, E-commerce, and Consulting
- IT Administrators, Software Developers, Security Engineers, and DevOps Professionals
No best-fit guidance available yet.
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 |
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How do Keycloak and FusionAuth Compare on Features?
Total Features | 9 Features | 13 Features |
|---|---|---|
Unique Features | No unique features | No unique features |
Get Quote | Get Quote |
Compare Keycloak and FusionAuth 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 | ||
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Starting From |
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Pricing Plans |
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Pricing Page | Pricing information not available |  |
Other Details
Organization Types supported |
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Platforms Supported |
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Modes of support |
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API Support |
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Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
SOC 2 | — | ✓ Yes |
|---|---|---|
GDPR | ✓ Yes | ✓ 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 | ||
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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 express strong satisfaction with FusionAuth's comprehensive identity management features and security benefits. What buyers like
Common complaints
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Pros and Cons |
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Positive Reviews | No reviews available for the product | No reviews available for the product |
Media and Screenshots
Screenshots |  6 Screenshots |  9 Screenshots |
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Videos | No videos available. |  3 Videos |
Top Alternatives to Keycloak and FusionAuth in 2026
Alternatives |
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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 FusionAuth?
- FusionAuth edges out the other on user ratings (4.7 vs 4.3). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Keycloak and FusionAuth offer a free trial?
- FusionAuth offers a free trial. Keycloak does not.
- What is the starting price of Keycloak vs FusionAuth?
- Keycloak starts at Contact for pricing. FusionAuth starts at $37 /month.
- 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 FusionAuth?
- Top alternatives to FusionAuth include Keycloak, Omada CIAM, Auth0, LoginRadius, Ubisecure CIAM.