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Clerk vs SuperTokens

Clerk and SuperTokens both land on Depends.

Clerk

clerk.com

Depends
Confidence: Medium

Buy if you're a React/Next.js team shipping fast and staying under the free tier's 50K users.

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Clerk versus SuperTokens
CompareClerkSuperTokens
VerdictDependsDepends
Best forReact/Next.js startupsDeveloper-led startups
Who it's not forHigh-volume consumer apps . MAU pricing bites hardNo-code founders without engineers
PrivacyMultiple public CVEs including a CVSS 9.1 auth bypass . pattern warrants monitoring before trusting it with critical flows.⁶No known public vulnerabilities found in the sources reviewed.12
Support qualityNo support evidence foundNo support evidence in reviewed sources
Public sentimentDevelopers consistently praise the fast React/Next.js setup but complain loudly that pricing scales badly with user growth.²Users consistently frame SuperTokens as the affordable open-source answer to Auth0 and Firebase Auth.15
Biggest gotchaMAU-based pricing escalates fast; founder publicly answered 'predatory pricing' accusationsModest funding for a company holding your login infrastructure . weigh vendor risk

Pick Clerk when

  • React/Next.js startups
  • Fast MVP launches
  • B2B SaaS with orgs/teams
  • Devs avoiding DIY auth

When Clerk is not a fit

  • High-volume consumer apps . MAU pricing bites hard
  • Security-critical or regulated apps wanting self-custody
  • Non-React stacks; it's purpose-built for the modern React web
  • Anyone wanting predictable flat pricing

Pick SuperTokens when

  • Developer-led startups
  • Teams avoiding per-user auth pricing
  • Self-hosters wanting data control
  • Apps migrating off Auth0 or Cognito

When SuperTokens is not a fit

  • No-code founders without engineers
  • Teams wanting one vendor accountable for uptime
  • Enterprises needing full Okta-scale identity suites
  • Anyone unwilling to self-manage a security component

Sources

  1. Is Clerk's pricing really that insane? . Redditreddit.com
    review
  2. Any experience with Clerk? . Redditreddit.com
    review
  3. Clerk.dev on G2 (2.9/5)g2.com
    review
  4. Clerk Pricingclerk.com
    official
  5. Clerk pricing explainedclerk.com
    official
  6. CVE-2026-41248: Clerk middleware bypasszeropath.com
    security
  7. CVE-2025-63700: clerk-js OAuth bypassgithub.com
    security
  8. Clerk Series C announcementclerk.com
    news
  9. Novu migrates user management to Clerknovu.co
    news
  10. Clerk alternatives: ceding vs owning UAM controlsupertokens.com
    review
  11. SuperTokens . official sitesupertokens.com
    official
  12. SuperTokens security pagesupertokens.com
    security
  13. GitHub . supertokens-coregithub.com
    official
  14. G2 . SuperTokens reviewsg2.com
    review
  15. AlternativeTo . SuperTokensalternativeto.net
    review
  16. Everything About SuperTokens . Ankur Tyagitheankurtyagi.com
    review