Clerk, Auth0, Supabase Auth, and WorkOS compared for real SaaS teams shipping in 2026.
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SaaS teams on Next.js or React who want beautiful, complete auth with minimal setup and built-in organization support.
Visit ClerkEnterprises and teams with complex, non-standard identity requirements that value maximum flexibility and integrations.
Teams already building on Supabase or Postgres who want auth that integrates natively with their database.
SaaS companies moving upmarket that need enterprise SSO, SAML, SCIM, and directory sync without building it in-house.
Authentication is one of those things you only want to build once. The right provider handles sign-in, sessions, social login, multi-factor auth, and increasingly organizations and enterprise SSO, so you can spend your time on the product itself instead of password resets.
We compared four of the most popular options for SaaS teams. Clerk leads on developer experience and prebuilt UI, Auth0 remains the flexible enterprise workhorse, Supabase Auth is the value pick if you already live in Postgres, and WorkOS is purpose-built for selling upmarket with SSO and directory sync.
Before you pick, weigh these against your own situation — the right choice depends on your stage, budget, and goals.
Protocol & standards support — Ensure it supports OIDC, SAML, and SCIM, because enterprise customers will demand SSO and directory provisioning as you move upmarket.
B2B multi-tenancy — Check for native organizations, roles, and per-tenant SSO if you sell to teams, since bolting multi-tenant auth onto a consumer-first provider is painful.
Pricing model — Scrutinize how MAU tiers, enterprise SSO fees, and add-ons are priced, as some providers gate SSO or charge steep per-connection fees that punish growth.
Migration & lock-in — Confirm you can export password hashes and user data, so you are not permanently trapped if pricing or reliability disappoints later.
Developer experience & customization — Weigh SDK quality, hosted vs embeddable UI, and how much you can customize flows, MFA, and branding without fighting the platform.
| Tool | Best for | Free tier | Starts at | Standout |
|---|---|---|---|---|
| Modern SaaS on Next.js | Yes, generous | ~$25/mo (verify) | Drop-in prebuilt UI components | |
| Enterprise and complex needs | Yes, limited | ~$35/mo (verify) | Extreme flexibility and extensibility | |
| Postgres-native stacks | Yes | ~$25/mo (verify) | Tightly integrated with your database | |
| Going upmarket to enterprise | Yes, for core auth | Per connection (verify) | SSO, SAML, SCIM, and directory sync |
Pricing and features change often — verify current details on each provider's site. Last checked August 2026.
| Feature | ||||
|---|---|---|---|---|
| Prebuilt UI components | Partial | |||
| Social / passwordless login | ||||
| Organizations / B2B | Partial | |||
| Enterprise SSO (SAML/SCIM) | Partial | |||
| Self-hostable | ||||
| Free tier |
"Partial" means available via add-on, in beta, or more limited than competitors.
Clerk is the fastest way to add complete auth to a modern app, especially anything on Next.js. You drop in prebuilt, fully styled components for sign-in, sign-up, user profile, and organization switching, and get working auth in minutes rather than days. The developer experience is widely considered best in class.
Beyond the UI, Clerk ships organizations and B2B features, roles and permissions, social and passwordless login, and MFA out of the box. It is a strong default for teams that want to move fast without giving up polish, though very large user bases should model the per-MAU costs carefully.
Best for: SaaS teams on Next.js or React who want beautiful, complete auth with minimal setup and built-in organization support.
Auth0, now part of Okta, is the veteran enterprise-grade identity platform. It supports virtually any auth flow you can imagine through rules, actions, and a huge catalog of integrations, which makes it the safe choice for complex or highly regulated requirements.
That flexibility is also its trade-off. Configuration can be involved, and pricing can climb quickly as your user base and required features grow. For teams with demanding, non-standard identity needs, the depth is worth it; for a simple SaaS, it may be more than you need.
Best for: Enterprises and teams with complex, non-standard identity requirements that value maximum flexibility and integrations.
Supabase Auth is part of the broader Supabase backend platform, and it shines when you already use Supabase for your Postgres database. Users live right alongside your data, and row level security lets you enforce access rules directly in the database.
You get social and passwordless login, MFA, and a solid free tier at excellent value. It is less of a standalone identity product than the others here, so heavy B2B or enterprise SSO scenarios may need extra work, but for Postgres-native apps the integration is hard to beat.
Best for: Teams already building on Supabase or Postgres who want auth that integrates natively with their database.
WorkOS is built for the moment your SaaS starts closing enterprise deals that require single sign-on and directory sync. It abstracts the pain of SAML, OIDC, and SCIM into clean APIs so you can offer enterprise SSO without becoming an identity expert.
Core user management and auth have a free tier, while enterprise features are priced per connection, which aligns cost with the enterprise customers who demand them. It is the go-to complement, or alternative, when your roadmap is all about moving upmarket.
Best for: SaaS companies moving upmarket that need enterprise SSO, SAML, SCIM, and directory sync without building it in-house.
Clerk is the most popular choice for Next.js because it offers drop-in prebuilt components, first-class App Router support, and organizations out of the box, so you can ship complete auth in minutes.
Choose WorkOS when your priority is selling to enterprise and you need SAML SSO, SCIM provisioning, and directory sync. Many teams even pair a primary auth provider with WorkOS specifically for enterprise connections.
Yes, especially if you already use Supabase or Postgres. It handles social login, passwordless, and MFA, and integrates with row level security. Very heavy B2B or enterprise SSO needs may require extra work compared to Clerk or WorkOS.
All four have free tiers. Clerk and Supabase paid plans start around 25 dollars per month, Auth0 around 35 dollars per month, and WorkOS charges per enterprise connection. Always verify current pricing, since tiers and limits change.
Among these, Supabase is open source and self-hostable. Clerk, Auth0, and WorkOS are managed cloud services, which trades self-hosting control for less operational overhead and maintenance.
For most new SaaS products, Clerk offers the best balance of developer experience, prebuilt UI, and built-in organizations. Pick Supabase Auth if you already build on Postgres and want the best value, reach for Auth0 when you need maximum flexibility for complex enterprise requirements, and add WorkOS the moment enterprise SSO and directory sync appear on your roadmap.
Alternative.tools review team
We are the editorial team behind Alternative.tools, an independent platform for unbiased reviews of newly launched websites, tools, and products. We test tools hands-on, track pricing and features as they change, and publish practical comparisons and how-to playbooks so you can choose the right tool faster, without the marketing spin.