The 6 Best Auth0 Alternatives in 2026 (Authentication)
Dušan Jovović
Founder of Tolodora. I hunt for smaller, lesser-known tools that punch above their weight — and I only recommend the ones I'd actually use.
Auth0 is a leading authentication platform, but it can get expensive as you scale. Depending on whether you want modern DX, open source, or B2B SSO, another tool may fit. Here are six Auth0 alternatives I'd consider in 2026.
Comparing against the original?
See Auth0's profile, rating & reviews on Tolodora →
Clerk
- Pricing
- 8.0/10
- Functionality
- 9.2/10
- Ease of use
- 9.2/10
- Support
- 8.6/10
What I like
Beautiful pre-built UI components and a superb developer experience for modern apps.
Best for
Modern app auth + great DX.
Clerk offers drop-in auth with polished UI components and user management, loved for its DX. A top modern Auth0 alternative.
Supabase Auth
- Pricing
- 9.4/10
- Functionality
- 9.0/10
- Ease of use
- 8.6/10
- Support
- 8.4/10
What I like
Built-in auth as part of an open-source Postgres backend — great if you use Supabase.
Best for
Auth within an open-source backend.
Supabase includes auth alongside its Postgres database, storage and APIs. The pick when you want auth bundled with your backend.
Firebase Auth
- Pricing
- 8.8/10
- Functionality
- 8.8/10
- Ease of use
- 8.8/10
- Support
- 8.2/10
What I like
Google's mature, generous-free auth with many providers, part of Firebase.
Best for
Free, proven auth.
Firebase Authentication offers reliable auth with social and other providers, free for most apps. A proven Auth0 alternative.
Stytch
- Pricing
- 8.2/10
- Functionality
- 9.2/10
- Ease of use
- 8.6/10
- Support
- 8.4/10
What I like
Developer-first, flexible auth with passwordless, passkeys and strong fraud tools.
Best for
Flexible developer auth.
Stytch provides API-first authentication with passwordless options, MFA and fraud prevention. Great for custom, secure flows.
WorkOS
- Pricing
- 7.8/10
- Functionality
- 9.2/10
- Ease of use
- 8.6/10
- Support
- 8.6/10
What I like
Makes adding enterprise SSO, SCIM and directory sync to your SaaS easy.
Best for
Enterprise SSO for SaaS.
WorkOS adds enterprise features like SSO, SCIM and audit logs to your app. The pick for selling SaaS to enterprises.
Kinde
- Pricing
- 8.8/10
- Functionality
- 8.8/10
- Ease of use
- 9.0/10
- Support
- 8.4/10
What I like
Auth, user management and billing for startups, with a generous free tier.
Best for
Auth plus billing for startups.
Kinde bundles authentication, user management and billing for startups. A modern, founder-friendly Auth0 alternative.
Want the best modern DX? Clerk. An open-source backend with auth? Supabase. Google's free auth? Firebase Auth. Developer-first flexible auth? Stytch. Enterprise SSO for SaaS? WorkOS. Auth plus billing for startups? Kinde. Pick by stack and needs.
Keep exploring
Building one of these alternatives?
List your tool on Tolodora and get discovered by buyers comparing options.
Launch Your Product