Clerk vs Auth0: Best Auth for SaaS in 2026
Quick Comparison
| Clerk | Auth0 (Okta) | |
|---|---|---|
| Best For | JS/React startups that want auth done in a day with zero custom UI | Compliance-heavy SaaS or enterprises selling into regulated industries |
| Pricing | Free (50K MAUs) / $25/mo Pro+ | Free (25K MAUs) / from $35/mo |
| Winner | Our Pick |
Tool Breakdown
Clerk
40-60% cheaper than Auth0 below 50K MAU and ships pre-built UI components that cut weeks off auth implementation for JS-first teams.
- Best-in-class DX for Next.js and React
- Free up to 50K MAUs (raised from 10K in Feb 2026)
- SAML/OIDC SSO included in Pro (no per-connection fee)
- Weaker compliance story vs Auth0 (no FedRAMP, limited HIPAA)
- Less flexible for non-JS backend frameworks
Auth0 (Okta)
Enterprise CIAM platform with the broadest compliance portfolio — SOC 2, ISO 27001, HIPAA BAA, FedRAMP.
- Broadest compliance certifications including FedRAMP
- 100+ social connection providers
- Fine-grained authorization via Auth0 FGA
- SSO add-ons add $100+/mo on lower plans
- Steeper per-MAU cost at mid-scale vs Clerk
Frequently Asked Questions
Is Clerk cheaper than Auth0? +
Yes, significantly below 50K MAU. Clerk's free tier covers 50K MAU; Auth0's free tier stops at 25K MAU. At similar paid tiers, Clerk runs 40-60% cheaper until you hit enterprise pricing.
Does Clerk support enterprise SSO like SAML? +
Yes. As of 2025 Clerk includes SAML and OIDC SSO in its Pro plan with no per-connection fee — a major advantage over Auth0 which charges $100+/mo per SSO connection on lower plans.
Which is easier to migrate away from? +
Auth0 offers a migration API; Clerk has a bulk import endpoint. Neither is trivial — both store hashed passwords server-side, so plan for a gradual migration rather than a cut-over.