| Website | stack-auth.com |
| Category | Auth for Next.js |
| License | Open Source (Apache-2.0) |
| Pricing | Free plan with monthly active user limits; paid plans for higher usage, support, and advanced features. |
Overview
Stack Auth provides open-source authentication and user management for Next.js apps with prebuilt UI, orgs, RBAC, and a generous free tier.
Pros
- Next.js-first developer experience
- Prebuilt auth UI and user management components
- Built-in organizations, teams, and RBAC
- Open source with a usable free tier
- Good documentation for common auth flows
Cons
- Less mature than Clerk or Auth0
- Fewer third-party integrations
- Pricing limits may require review before production
- Self-hosting can add operational overhead
Verdict
Stack Auth is a strong choice for Next.js teams that want open-source authentication with prebuilt UI and organization features. It works best for startups and internal apps where speed and cost matter. The main trade-off is a smaller ecosystem compared to more established auth providers.
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