Clerk vs Auth0
Clerk is the modern React-native auth service with prebuilt UI and org management. Auth0 is the enterprise-standard identity platform. Clerk wins for startups shipping fast; Auth0 wins for teams selling into enterprise from day one.
Two products, side by side.
Modern auth for React / Next.js with drop-in UI + prebuilt user management
- Best DX for React / Next.js
- Prebuilt UI (sign in, sign up, user profile)
- Organizations + roles built in
- Impersonation and admin dashboard
- Free tier covers 10k MAU
- React-centric (works elsewhere but not as smooth)
- Not open source
- Pricing gets steep at scale
Enterprise-grade identity platform with every social provider and SAML
- Every social + enterprise provider
- SAML, SCIM, OIDC, enterprise-ready
- Mature, battle-tested since 2013
- Rules and Actions for custom flows
- Okta acquisition = enterprise credibility
- DX feels older than Clerk
- Pricing model changed to per-MAU (can spike)
- UI customisation is more work
- Complex for simple use cases
Clerk vs Auth0 on the specs.
| Feature | Clerk | Auth0 |
|---|---|---|
| React / Next.js DX | ✓Best in class | Good but more setup |
| Prebuilt UI | ✓Yes (drop-in components) | Universal Login (customisable) |
| Orgs + roles | Built in | Via Organizations feature |
| SAML SSO | Yes (paid tier) | Yes (paid tier) |
| SCIM | Yes | Yes |
| Social providers | ~15 (Google, GitHub, LinkedIn, X, etc.) | ✓30+ social + enterprise |
| MFA | TOTP, SMS, backup codes | ✓TOTP, SMS, WebAuthn, push |
| User impersonation | ✓Yes (in dashboard) | Yes (via Actions) |
| Compliance | SOC 2 Type II, HIPAA | ✓SOC 2, ISO 27001, HIPAA, FedRAMP |
| Self-host | No | No (there is Auth0 Private Cloud) |
What you will actually pay.
| Tier | Clerk | Auth0 |
|---|---|---|
| Free | 10k MAU | 25k MAU (limited social providers) |
| Startup | $25 / mo (10k MAU + org) | B2B $150 / mo (~1000 MAU) or B2C $35 / mo |
| Enterprise | Custom (SSO, SCIM, dedicated support) | Custom (starts high), SAML, MFA, dedicated |
Which one should you pick?
Shipping a Next.js / React product, want auth done in an afternoon, need orgs + roles + user impersonation, and your first enterprise customer is not next quarter.
Selling into mid-market or enterprise from day one, need SAML/SCIM, or you have compliance requirements (SOC 2, ISO 27001) that pre-approve Auth0/Okta.
For a mid-market B2B SaaS, both work. Clerk is faster to ship; Auth0 is safer if a lighthouse customer will ask "who's your identity provider" on their vendor security review.
Related matchups.
Common questions.
Which is faster to ship?
Clerk. From npm install to full auth flow with prebuilt UI: about 15 minutes. Auth0 is closer to 2-3 hours if you customise the Universal Login.
Which is safer for enterprise?
Auth0. Vendor security reviews pre-approve Okta/Auth0 more often than Clerk. Clerk is closing the gap fast (SOC 2 Type II, HIPAA).
Does Clerk work outside React?
Yes, with the JS SDK. But the prebuilt UI is React-only. For Vue / Svelte you'll build the UI yourself.
Can I use both?
You could, but you shouldn't. Pick one auth vendor per app.
Is Clerk cheaper?
Yes at hobby / startup scale (free 10k MAU + $25 for 10k). Auth0's free tier looks generous but paid tiers start higher.
Clerk or Auth0 for a React or Next.js app?
Clerk for most teams. It has the best React and Next.js developer experience, drop-in sign in and user profile components, and organizations with roles built in. Choose Auth0 instead if you are selling into enterprise from day one and need SAML, SCIM, 30 plus social and enterprise connections, or the certifications in the table above such as ISO 27001 and FedRAMP.
When should an Auth0 customer switch to Clerk?
When you are a startup or small team on a React or Next.js stack, you are not yet selling into enterprise, and Auth0 is costing you setup time or per-MAU spend. Do not switch if you rely on enterprise SAML and SCIM requirements, WebAuthn or push MFA, or compliance your customers have already approved Auth0 for. Moving users between providers needs its own plan for password hashes and sessions, so budget time for it before you commit.
How do Clerk and Auth0 pricing compare in 2026?
At hobby and early startup scale Clerk is the cheaper of the two. The pricing table above lists Clerk at 10k MAU free and $25 a month for the startup plan, against Auth0 at 25k MAU free with limited social providers, then $35 a month for B2C or $150 a month for B2B. Both move to custom pricing at enterprise, where you should expect to negotiate.
Open the tool.
Once you have picked, grade your stack across 10 production categories in 3 minutes. Free, honest, prioritised fix plan.
Grade the Clerk or Auth0 setup you pick