Clerk alternatives
Comprehensive authentication and user management platform designed for modern web applications.
 ClerkThis tool | Yes | Easy | 5-10 minutes |
| — | Medium | 5 minutes | |
| Yes | Easy | 5-10 minutes | |
| — | Medium | Quick setup with CLI initialization | |
| Yes | Easy | — | |
| Yes | Medium | 30 minutes to 2 hours depending on deployment method | |
| Yes | Easy | Minutes for basic SSO integration | |
| — | — | — | |
| Yes | Easy | — | |
| No | Medium | 15-30 minutes | |
| Yes | Medium | Minutes with setup wizard; full SaaS running in hours | |
| Yes | Easy | Minutes to get started | |
| Yes | Medium | Under 5 minutes to get started; MVP deployable in days |
- ClerkThis tool
Comprehensive authentication and user management platform designed for modern web applications.
- Free plan
- Yes
- Learning curve
- Easy
- Setup
- 5-10 minutes
Identity platform for authentication, authorization, SSO, and social login in apps.
- Free plan
- —
- Learning curve
- Medium
- Setup
- 5 minutes
Open-source authentication library for Next.js and modern JavaScript frameworks.
- Free plan
- Yes
- Learning curve
- Easy
- Setup
- 5-10 minutes
TypeScript authentication framework with plugins for sessions, OAuth, and passkeys.
- Free plan
- —
- Learning curve
- Medium
- Setup
- Quick setup with CLI initialization
JSON Web Token standard for compact, signed claims used in stateless API authentication.
- Free plan
- Yes
- Learning curve
- Easy
- Setup
- —
Open-source identity broker with SSO, OIDC, SAML, and user federation for enterprises.
- Free plan
- Yes
- Learning curve
- Medium
- Setup
- 30 minutes to 2 hours depending on deployment method
Modern API platform that enables developers to quickly add enterprise features to their applications.
- Free plan
- Yes
- Learning curve
- Easy
- Setup
- Minutes for basic SSO integration
Next.js starter kit to launch AI SaaS fast with auth, payments, and dashboards.
- Free plan
- —
- Learning curve
- —
- Setup
- —
Fast-launch AI SaaS boilerplate with 15+ pre-built AI tools, auth, payments, and dashboard.
- Free plan
- Yes
- Learning curve
- Easy
- Setup
- —
Builder Box helps developers launch full-stack SaaS apps faster with ready-to-use auth, payments, and AI tools.
- Free plan
- No
- Learning curve
- Medium
- Setup
- 15-30 minutes
Gravity helps you launch a SaaS fast with auth, payments, and dashboards ready.
- Free plan
- Yes
- Learning curve
- Medium
- Setup
- Minutes with setup wizard; full SaaS running in hours
Budget-friendly Next.js starter. Auth, payments, modern stack.
- Free plan
- Yes
- Learning curve
- Easy
- Setup
- Minutes to get started
An open-source SaaS starter kit that helps you build, launch, and monetize full-stack apps fast.
- Free plan
- Yes
- Learning curve
- Medium
- Setup
- Under 5 minutes to get started; MVP deployable in days
How these alternatives were chosen
Tools Clerk names as alternatives that this directory also publishes, followed by others in Auth. The order is not a ranking, and "—" means we have not checked that field — not that the answer is no.
Clerk also lists Firebase Authentication, Supabase Auth, NextAuth.js, Okta as alternatives. Those are not in this directory yet, so there is nothing to compare — and nothing to link to.