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← Clerk

Alternatives

Clerk alternatives

Clerk provides embeddable UI components, APIs, and dashboards for full-stack user authentication, management, and billing. Here are 24 similar tools on DevHunt, starting with the closest matches.

Quick answerThe best free Clerk alternative is FusionAuth, for self-hosted auth platform. Pick Corbado for passkey-first auth, or SpiceDB for fine-grained permissions.

At a glance

4 closest to Clerk
ToolBest forPricingVotesComparison
FusionAuthSelf-hosted auth platformFree9vs Clerk →
CorbadoPasskey-first authFree73vs Clerk →
SpiceDBFine-grained permissionsFree, open source27vs Clerk →
LoginLlamaLogin fraud detectionFree4vs Clerk →

How to choose

  • For self-hosted auth platform: FusionAuth (free)
  • For passkey-first auth: Corbado (free)
  • For fine-grained permissions: SpiceDB (free, open source)
  • For login fraud detection: LoginLlama (free)
  • For turnkey auth and user management: Clerk itself

Closest alternatives

compared with Clerk
  • FusionAuth▲ 9 · Free

    FusionAuth is self-hosted and open source, while Clerk is a managed SaaS with built-in UI components. Clerk vs FusionAuth →

  • Corbado▲ 73 · Free

    Corbado focuses on passkey-first authentication, whereas Clerk provides a broader set of auth and billing features. Clerk vs Corbado →

  • SpiceDB▲ 27 · Free

    SpiceDB is a permissions engine, not a full auth UI or billing solution like Clerk. Clerk vs SpiceDB →

  • LoginLlama▲ 4 · Free

    LoginLlama detects fraudulent logins, while Clerk includes MFA and fraud prevention as part of its auth suite. Clerk vs LoginLlama →

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FAQ

What is the best alternative to Clerk?+

The closest Clerk alternatives are FusionAuth (self-hosted auth platform), Corbado (passkey-first auth) and SpiceDB (fine-grained permissions). LoginLlama is also close. Each one links to a side-by-side comparison with Clerk.

What is the best free alternative to Clerk?+

FusionAuth (self-hosted auth platform) is the closest free alternative to Clerk. Corbado (passkey-first auth), SpiceDB (fine-grained permissions) and LoginLlama (login fraud detection) are free too.

Is there an open source alternative to Clerk?+

Yes. SpiceDB (fine-grained permissions) is open source.

What is Clerk used for?+

Clerk provides embeddable UI components, APIs, and dashboards for full-stack user authentication, management, and billing. Common uses: add social sign-on and magic-link login to a SaaS product in minutes, implement multi-tenant organization onboarding with custom roles and permissions and launch a subscription-based service with built-in billing UI and usage tracking.

Is Clerk free?+

Clerk has a free tier and paid plans, with a free trial.