Best Self-Hosted Auth0 Alternatives in 2026
Auth0 is an authentication and authorization platform for adding login, SSO, and identity management to applications. Free tier available; paid plans start at $35/mo.
17 Self-Hosted Alternatives to Auth0
KeyCloak
33KOpen source identity and access management. Add authentication to applications and secure services with minimum effort.
Better Auth
27KTypeScript-first authentication framework with 50+ plugins covering passkeys, multi-tenancy, SSO, and MFA — configured in a single auth.ts file.
Authelia
27KOpen-source IAM platform and OpenID Certified OpenID Connect 1.0 provider. Modern, flexible authentication and authorization.
Authentik
21KAuthentik is a self-hosted authentication & SSO tool with support for Authentication, Identity Management, security.
ORY
17KOry is a certified and battle-tested identity solution backed by a large open source community and trusted by Fortune 500 companies
Supertokens
15KOpen Source User Authentication. Build fast, maintain control, with reasonable pricing
Ory
14KOry handles certified and battle-tested identity solution backed by a large community and trusted by Fortune as a self-hosted solution.
Zitadel
13KZitadel handles provides a comprehensive identity management solution as a self-hosted solution.
Logto
12KLogto lets you run identity solution offering customizable login experiences entirely on your own server.
Hanko
8.9KHanko lets you run streamline user authentication entirely on your own server.
Stack Auth
6.7KStack Auth gives you provides secure authentication, authorization, and user management for developers in just 5 minutes on your own infrastructure.
Permify
5.8KPermify is a self-hosted cybersecurity tools tool that provides authorization service for implementing fine-grained access controls. Centralized.
Cerbos
4.3KCerbos is a self-hosted authentication & SSO replacement for AWS Cognito, Auth0, and more.
Authgear
1.5KAuthgear gives you managed authentication platform on your own infrastructure.
Tesseral
1.1KReleased under MIT, Tesseral provides complete B2B authentication solution on self-hosted infrastructure.
Fief
728Self-hosted security & authentication tool that provides user authentication management.
Oso
159For developer tools, Oso offers a self-hosted way to offer scalable, flexible authorization for modern applications.
Why Look for Auth0 Alternatives?
Auth0 is an authentication and authorization platform for adding login, SSO, and identity management to applications. Free tier available; paid plans start at $35/mo.
Self-hosted alternatives give you full data ownership, predictable costs, and zero vendor lock-in. You run the software on your own infrastructure and control everything.
17 Best Open-Source Alternatives to Auth0
Hanko
Secure, scalable, and customizable authentication solution for developers. — 8,868 GitHub stars. Licensed under Open Source.
Better Auth
A comprehensive authentication framework offering email/password, social sign-on, two-factor auth, and multi-tenant support with full TypeScript integration. — 27,214 GitHub stars. Licensed under MIT.
KeyCloak
Secure applications with minimal effort. — 33,366 GitHub stars. Licensed under Apache-2.0.
Authentik
Open-source Identity Provider with flexibility. — 20,524 GitHub stars. Licensed under Custom.
Supertokens
Build fast. Maintain control. Save budget. — 14,966 GitHub stars. Licensed under Open Source.
Zitadel
Streamline app development with our identity suite. — 13,266 GitHub stars. Licensed under AGPL-3.0.
ORY
Ory: Modular IAM with unmatched UX. — 16,997 GitHub stars. Licensed under Apache-2.0.
Logto
Identity infrastructure for developers — 11,704 GitHub stars. Licensed under MPL-2.0.
Stack Auth
Stack Auth provides secure authentication, authorization, and user management for developers in just 5 minutes. — 6,737 GitHub stars. Licensed under Open Source.
Permify
Open-source authorization service for implementing fine-grained access controls. Centralized, scalable solution supporting RBAC, ABAC and ReBAC with Google Zanzibar-inspired architecture. — 5,830 GitHub stars. Licensed under AGPL-3.0.
Cerbos
Externalized, policy-based, runtime authorization for your applications. — 4,263 GitHub stars. Licensed under Apache-2.0.
Authgear
Turnkey solution for consumer authentication needs — 1,518 GitHub stars. Licensed under Apache-2.0.
Tesseral
Complete B2B authentication solution with SSO, role management, API security, and pre-built UI components. Ship enterprise-grade auth in just a few lines of code. — 1,116 GitHub stars. Licensed under MIT.
Authelia
Open-source SSO and MFA server. — 27,221 GitHub stars. Licensed under Apache-2.0.
Ory
Ory is a certified and battle-tested identity solution backed by a large open source community and trusted by Fortune 500 companies. — 13,533 GitHub stars. Licensed under Apache-2.0.
Fief
Open-source user authentication management. — 727 GitHub stars. Licensed under Open Source.
Oso
Oso offers scalable, flexible authorization for modern applications. — 159 GitHub stars. Licensed under Open Source.
Why Self-Host Instead of Auth0?
- Data ownership. Your data stays on your server, not on Auth0’s infrastructure.
- Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- No vendor lock-in. Export and migrate your data anytime. You control the database.
- GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
How much can you save?
Auth0 (B2C Essentials)
$35/mo
Billed monthly
$420/year
KeyCloak (self-hosted)
$10/mo
VPS hosting only. $0 per-user fees.
$320 year 1 (incl. $200 setup)
Your annual savings
$100
Year 1 (after setup cost). Year 2+: $300/year (71% less).
That's $25 saved every month.
KeyCloak runs on a $10/mo VPS with unlimited users. Setup by upready.dev starts at $200 (one-time). Auth0 pricing as of March 2026.
Why teams switch from Auth0
- → Data ownership. Your data stays on your server -- not on Auth0's infrastructure.
- → Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- → No vendor lock-in. Export and migrate your data anytime. You control the database.
- → GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
Head-to-Head Comparisons
Both are security tools. Authelia has 4 unique features, Casdoor has 2.
Both are security tools. Authelia has 4 unique features, Ory has 2.
Both are security tools. Authelia has 4 unique features, Teleport has 4.
Both are security tools. Authelia has 3 unique features, Authentik has 1.
Both are security tools. Authelia has 4 unique features, ORY has 2.
Both are security tools. Authelia has 5 unique features, Vaultwarden has 3.
Both are security tools. Authentik has 2 unique features, Casdoor has 2.
Both are security tools. Authelia has 3 unique features, VoidAuth has 1.
Keycloak for enterprise environments that need Java ecosystem compatibility and battle-tested production reliability. Authentik for modern self-hosters who want an easier setup with a beautiful UI and proxy-based authentication.
Both are security tools. Authentik has 4 unique features, Vaultwarden has 4.
Both are security tools. Casdoor has 2 unique features, ORY has 2.
Both are security tools. Hanko has 3 unique features, Vaultwarden has 3.
Both are security tools. Infisical Community Edition has 7 unique features, Ory has 1.
Both are security tools. Infisical Community Edition has 7 unique features, ORY has 1.
Both are security tools. Logto has 7 unique features, Vaultwarden has 2.
Both are security tools. Logto has 3 unique features, Supertokens has 0.
Both are security tools. Ory has 0 unique features, Teleport has 2.
Both are security tools. ORY has 0 unique features, Teleport has 2.
Both are security tools. ORY has 4 unique features, Vaultwarden has 4.
Both are security tools. Supertokens has 5 unique features, Vaultwarden has 3.
Both are security tools. Vaultwarden has 2 unique features, Zitadel has 12.
Browse more Security & Authentication tools
Explore 159 open-source security & authentication tools you can self-host.
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