Best Auth0 alternatives in 2026
The best Auth0 alternatives in 2026 are Keycloak, Better Auth, Okta. Keycloak is the strongest free option. Cloudflare costs less, from $5/mo versus $35/mo for Auth0.
Why people look for Auth0 alternatives
Auth0 is used by companies that need login for their applications, especially with enterprise SSO requirements or large consumer user bases, and it is known for a flexible identity platform with a free tier. Paid plans start at $35 a month, but costs rise quickly beyond the free tier or once enterprise connections are needed. Configuration is complex, UI customization takes effort, and some users feel innovation has slowed under Okta's ownership.
When choosing a replacement, weigh cost at your expected user count, whether you can self-host, which frameworks you use, enterprise SSO and compliance needs, and how hard it would be to migrate user records later.
- Expensive once beyond free or with enterprise connections
- Complex configuration
- UI customization takes effort
- Okta ownership slows some innovation
- Auth0 starts at $35/mo (Freemium).
Best Auth0 alternative by need
| # | Tool | Pricing | Starts at | Best for | Platforms | Votes |
|---|---|---|---|---|---|---|
| 1 | Keycloak Open-source identity and access management | Open source | $0 | Enterprise, Developers | web | 0 |
| 2 | Better Auth Framework-agnostic TypeScript authentication | Open source | $20/mo | Developers | web | 0 |
| 3 | Okta Enterprise identity platform for SSO, MFA and user lifecycle | Paid | $6/mo | Enterprise, Small businesses, Developers | web, macos, windows, ios, android | 0 |
| 4 | Scalekit Auth platform for B2B apps and AI agents, with an MCP gateway | Freemium | $99/mo | Developers, Small businesses, Enterprise | web | 0 |
| 5 | Cloudflare CDN, DNS, WAF and edge platform | Freemium | $5/mo | Developers, Enterprise | web | 0 |
| 6 | GitLab DevSecOps platform with Git hosting, CI/CD, security scans and AI | Freemium | $29/mo | Developers, Enterprise, Small businesses | web, linux | 0 |
| 7 | LiveReview AI code review that risk-scores PRs and auto-approves the safe ones | Freemium | $32/mo | Developers, Small businesses, Enterprise | web | 0 |
| 8 | Invicti Proof-based DAST and AppSec platform for web apps and APIs | Paid | — | Enterprise, Developers | web, windows | 0 |
| 9 | Clerk Drop-in authentication and user management | Freemium | $25/mo | Developers | web | 0 |
| 10 | Snyk Developer security for code and dependencies | Freemium | $25/mo | Developers | web | 0 |
10 Auth0 alternatives compared
- 1
Keycloak
Open-source identity and access management
Why pick it over Auth0: Keycloak is open source and self-hosted with no license fee, covering SSO, user federation and standard identity protocols. It fits organizations that want full control of identity data and can run it themselves instead of paying Auth0 as users grow.
- 2
Better Auth
Framework-agnostic TypeScript authentication
Why pick it over Auth0: Better Auth is an open-source TypeScript authentication library, with paid options from $20 a month. It fits TypeScript developers who want auth inside their own code and database, avoiding Auth0's per-user pricing and external dependency.
- 3
Okta
Enterprise identity platform for SSO, MFA and user lifecycle
Why pick it over Auth0: Okta starts at $6 a month and is built for workforce identity: SSO, MFA and lifecycle for company apps. It fits companies whose real need is managing employee access, which Auth0 is not mainly designed for, even though both belong to Okta.
- 4
Scalekit
Auth platform for B2B apps and AI agents, with an MCP gateway
Best for: Engineering teams that ship AI agents acting on users' behalf, or B2B SaaS products that need enterprise SSO and SCIM quickly.
- 5
Cloudflare
CDN, DNS, WAF and edge platform
Why pick it over Auth0: Cloudflare starts at $5 a month and runs CDN, DNS, WAF and edge services. It is not a login provider like Auth0, but its access controls can protect internal tools without building authentication into each app.
- 6
GitLab
DevSecOps platform with Git hosting, CI/CD, security scans and AI
Why pick it over Auth0: GitLab starts at $29 a month and covers Git hosting, CI/CD and security scans with a self-hosting option. It does not replace Auth0 for app login; it fits teams that want their development and security pipeline in one platform.
- 7
LiveReview
AI code review that risk-scores PRs and auto-approves the safe ones
Best for: Engineering teams with high PR volume who want human reviewers to focus only on risky changes.
- 8
Invicti
Proof-based DAST and AppSec platform for web apps and APIs
Why pick it over Auth0: Invicti has no public list price and runs automated DAST and API security testing. It does not handle login like Auth0; it fits security teams that need to find vulnerabilities across many web apps and APIs.
PaidAuth0 vs Invicti - 9
Clerk
Drop-in authentication and user management
Why pick it over Auth0: Clerk starts at $25 a month, under Auth0's $35, and offers drop-in sign-in components and user management. It fits React and Next.js teams that want polished auth screens without the UI customization work Auth0 requires.
- 10
Snyk
Developer security for code and dependencies
Why pick it over Auth0: Snyk starts at $25 a month and finds vulnerabilities in code and dependencies. It is not an identity provider like Auth0; it fits engineering teams whose priority is securing the application codebase itself.
Auth0 alternatives: FAQ
What is the best alternative to Auth0?
Based on features, audience and market presence, the strongest Auth0 alternatives are Keycloak, Better Auth, Okta. Keycloak is the closest match for most teams.
Is there a free alternative to Auth0?
Yes. Keycloak can be used for free. Other free or freemium alternatives to Auth0 include Better Auth, Scalekit, Cloudflare.
What is cheaper than Auth0?
Cloudflare starts at $5/mo, while Auth0 starts at $35/mo. Prices are checked on each vendor's own pricing page.
Is there an open-source alternative to Auth0?
Yes. Keycloak is open source, so you can self-host it or inspect the code.