Auth
An honest comparison to help you pick the right auth tool in 2026.
| Feature | Auth0 | NextAuth (Auth.js) |
|---|---|---|
| Category | Auth | Auth |
| Free Tier | Yes | Yes |
| Paid Plan | $35/mo | $0 |
| Enterprise | Custom | N/A |
| Best For | Enterprise teams who need robust, customizable auth with compliance and SSO requirements | Next.js developers who want free, open-source auth with full control over their setup |
| Feature 1 | Universal login | Open source |
| Feature 2 | Social connections | 50+ providers |
| Feature 3 | MFA | Database adapters |
| Feature 4 | Actions (extensibility) | JWT/session support |
| Feature 5 | Enterprise SSO | Framework agnostic |
| Website | Auth0 | NextAuth (Auth.js) |
Auth0 and NextAuth (Auth.js) are both popular choices in the auth category, but they serve different types of developers. Auth0 is enterprise identity platform by Okta with universal login, social connections, MFA, and extensive customization options. Meanwhile, NextAuth (Auth.js) is open-source authentication library for Next.js and other frameworks with provider-based architecture and database adapters.
Both tools offer free tiers, which means you can try each one before committing. Auth0's paid plan starts at $35/mo, while NextAuth (Auth.js)'s starts at $0.
Auth0 stands out with Universal login and Social connections, while NextAuth (Auth.js) differentiates itself through Open source and 50+ providers. The right choice depends on which capabilities matter most for your workflow. Ultimately, enterprise teams who need robust, customizable auth with compliance and SSO requirements, while NextAuth (Auth.js) is best for next.js developers who want free, open-source auth with full control over their setup.
Auth0: Free tier available. Paid plans start at $35/mo. Enterprise pricing: Custom.
NextAuth (Auth.js): Free tier available. Paid plans start at $0.
Choose Auth0 if you value universal login and social connections. Go with NextAuth (Auth.js) if next.js developers who want free, open-source auth with full control over their setup. Both are solid auth options in 2026 — the best pick depends on your team size, budget, and technical requirements. We recommend trying both (especially if they have free tiers) before committing to one.
Not sold on either Auth0 or NextAuth (Auth.js)? Check out these other auth tools:
See all Auth0 alternatives or NextAuth (Auth.js) alternatives.
Read more about auth on our Vibe Coding page.
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