Best Keycloak alternatives in 2026
4 direct alternatives to Keycloak and 4 more tools in the same category, compared on pricing, features, and best-for use cases. Pick the right replacement without the marketing fluff.
Curated by Louis Corneloup · Updated Cite this list: Toolradar, best Keycloak alternatives 2026, toolradar.com/alternatives/keycloak
Why people consider alternatives to Keycloak
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.
Teams most often switch away when one of these starts to bite:
- A feature or quota ceiling that a paid specialist covers and this free tool does not.
- Missing integrations with the rest of your stack.
- Performance or scale limits as your needs grow.
- A specific feature gap you have hit in identity & access.
The 4 direct alternatives below cover the same core job (identity & access) with different trade-offs. The 4 tools marked "Same category as Keycloak" fit the category but replace Keycloak less directly.
8 alternatives to Keycloak
Direct alternatives come first, ranked by G2 and Capterra ratings, media mentions, and editor review. Tools marked "Same category as Keycloak" follow, ranked the same way.
- 1
Auth0
Free planIdentity platform for developers
4.5 /5 across G2 and Capterra · 424 ratings, Sep 2026
- 2
Okta
Paid Battle-tested at scaleEnterprise identity management
3.5 /5 across G2 and Trustpilot · 1,704 ratings, Sep 2026
- 3
Ping Identity
PaidEnterprise identity security solutions
4.5 /5 across G2 and Capterra · 202 ratings, Sep 2026
- 4
GPS
100% freeSecure your data with location-based, impenetrable encryption keys
- 5
Proton VPN
Free plan Battle-tested at scaleSwiss privacy protection with unlimited bandwidth
4.6 /5 across G2 and SourceForge · 41,014 ratings, May 2026
Same category as Keycloak
- 6
Proton
Free plan Battle-tested at scaleEnd-to-end encrypted suite for total digital privacy
4.8 /5 on SourceForge · 31,996 ratings, May 2026
Same category as Keycloak
- 7
Porkbun
Paid Battle-tested at scaleDomain registrar with competitive pricing
4.8 /5 across G2 and Trustpilot · 26,552 ratings, Sep 2026
Same category as Keycloak
- 8
ServiceNow
Paid Battle-tested at scaleDigitize and automate workflows for IT, HR, and customer service
4.5 /5 across G2 and Capterra · 2,341 ratings, Sep 2026
Same category as Keycloak
Frequently asked questions
What is the best alternative to Keycloak?
Based on real-signal scoring (G2 and Capterra ratings, media mentions, and editorial review), the top alternatives to Keycloak are Auth0, Okta, Ping Identity. Each solves the same core job with different trade-offs on pricing, features, and integrations.
Is there a free alternative to Keycloak?
Keycloak is already 100% free (no paid upgrade path). GPS is another fully free option listed here (Secure your data with location-based, impenetrable encryption keys). Freemium tools on this list have a free tier plus paid plans; they are not the same as 100% free.
Why do people look for Keycloak alternatives?
Common reasons teams switch away from Keycloak even though it is free: missing integrations with the rest of their stack, performance or scale limits, or a specific feature gap in identity & access. The alternatives on this page solve the same core problem with a different feature set.
Side-by-side comparisons
In-depth comparison pages for Keycloak versus each alternative.
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