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Keycloak

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Open-source identity and access management

Identity & AccessSecurityDeveloper Tools
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Reviews onG2SourceForge
101 reviews tracked

The Bottom Line

Entry price

Free, no paid tier

Biggest pro

Open source identity

Biggest con

Complex to set up

TL;DR - Keycloak

  • Keycloak is an open-source identity and access management solution
  • It provides SSO, social login, and user federation for applications and services
  • Completely free and open-source
Pricing: Free forever
Best for: Individuals & startups
4.3/5 across review platforms

What is Keycloak?

Editorial review
Keycloak provides identity and access management you can self-host. SSO, identity federation, user management-enterprise IAM from Red Hat, open source. The features rival commercial IAM. Self-hosting keeps control with you. The protocol support is comprehensive. Organizations wanting enterprise IAM they control choose Keycloak for self-hosted identity management.

Available on: Web

how we evaluateSourcekeycloak.org ↗

Pros & Cons

Pros

  • Open source identity
  • Self-hostable
  • Feature rich
  • No per-user cost
  • Enterprise ready

Cons

  • Complex to set up
  • Requires maintenance
  • Learning curve
  • Java-based
  • UI dated

Ratings Across the Web

4.3(101 reviews)

Keycloak holds an aggregate rating of 4.3 out of 5 from 101 reviews across G2 and SourceForge, last checked March 18, 2026.

G234 reviews
4.3/5
SourceForge67 reviews
4.3/5

What people say

“Its open source, extendable, functional, verry good support from email group”via G2

Ratings aggregated from independent review platforms. Learn more

Key Features

Identity managementSSOLDAPSocial loginAdmin consoleOpen source

Pricing Plans

Pricing checked Aug 18, 2026

Open Source

Free

  • Apache 2.0 license
  • SSO & identity management
  • OIDC & SAML support
  • Self-hosted
  • Community support
Calculate your costView full pricing

Is Keycloak worth the price?

95/100

Keycloak's pricing is exceptionally generous, being entirely free as an open-source solution.

This makes it an outstanding value for organizations looking for robust identity and access management without any direct software costs. It's best for organizations with the technical expertise to self-host and manage their IAM infrastructure.

Hidden Costs & Gotchas

Infrastructure hosting costs (servers, networking)

Internal development and maintenance staff

Potential for third-party consulting fees

No official vendor support included

How Keycloak Compares to Competitors

Compared to commercial solutions like Okta, which can start at hundreds or thousands of dollars per month depending on features and users, Keycloak's $0 price point is a massive differentiator. Auth0 (now Okta Workforce Identity Cloud) also offers paid tiers, making Keycloak a significantly more cost-effective option for those willing to manage it themselves.

Reviews

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4.3/5

Across 101 verified user reviews on SourceForge, G2

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Best Keycloak Alternatives

Top alternatives based on features, pricing, and user needs.

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Ping IdentityPaid

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GPSFree

Secure your data with location-based, impenetrable encryption keys

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Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

Keycloak vs OktaHead-to-head: features, pricing, who winsKeycloak vs Auth0Head-to-head: features, pricing, who winsKeycloak vs Ping IdentityHead-to-head: features, pricing, who wins

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Keycloak FAQ

How does Keycloak support identity and access management for enterprises?

Keycloak offers robust enterprise-grade identity and access management features, including single sign-on (SSO) and identity federation, which can be self-hosted. It provides comprehensive protocol support, rivaling commercial IAM solutions.

Which teams benefit most from using Keycloak?

Organizations that require complete control over their identity management infrastructure and prefer a self-hosted solution will find Keycloak beneficial. It is particularly suited for development teams and enterprises needing a customizable IAM system.

How does Keycloak compare to Auth0?

Keycloak is an open-source, self-hostable identity and access management solution, which means there are no per-user costs. In contrast, Auth0 is typically a commercial, cloud-based service.

What kind of trade-offs should users consider before adopting Keycloak?

Keycloak has a learning curve and can be complex to set up, requiring ongoing maintenance. Its user interface is considered dated, and the system is Java-based.

How is Keycloak priced?

Keycloak is free to use, as it is an open-source product. There is no paid plan required to access its features or functionality.

Can Keycloak be integrated with existing security infrastructure?

Keycloak provides comprehensive protocol support, enabling integration with various systems for identity federation and single sign-on. This allows it to function as a central identity provider within an enterprise's security landscape.

Source: keycloak.org

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