Clerk vs Auth0 vs WorkOS for B2B SaaS 2026

TL;DR

Clerk, Auth0, and WorkOS solve different stages of the same problem. Clerk is the fastest to implement and best for early-stage SaaS (free up to 10,000 MAU). Auth0 is the enterprise workhorse with 30+ years of battle-testing and every enterprise feature you'll need eventually. WorkOS is the specialist — purpose-built to add enterprise SSO (SAML/OIDC), SCIM provisioning, and audit logs to an existing product. For most boilerplates, the path is: Clerk to launch → WorkOS when enterprise customers demand SSO.

Key Takeaways

• Clerk: best DX, fastest setup, built for Next.js App Router — free to 10K MAU then $0.02/MAU
• Auth0: most feature-complete, best enterprise support, complex pricing — $23/month to start
• WorkOS: not a full auth provider — adds enterprise SSO/SCIM/audit logs on top of existing auth
• Supabase Auth: free, self-contained, best for Supabase-native boilerplates
• Migration difficulty: Clerk → WorkOS is a natural path; Auth0 → anything is painful (vendor lock-in)
• B2B trigger point: when your first enterprise customer asks for SSO, you need WorkOS or Auth0

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The Auth Provider Landscape

Full Auth Providers (replace your auth completely):
  Clerk      — Developer-first, Next.js-optimized
  Auth0      — Enterprise-grade, 30+ years legacy
  Supabase   — Self-contained, free, Postgres-native
  NextAuth   — Open source, self-hosted, most flexible

Enterprise Auth Add-ons (work alongside your auth):
  WorkOS     — SSO + SCIM + Directory Sync + Audit Logs
  Okta       — Enterprise SSO and Identity Management

When to use each:
  Early stage (<10K MAU, B2C-ish)     → Clerk
  Enterprise from day 1               → Auth0 or WorkOS
  Supabase stack                      → Supabase Auth
  Privacy / self-host                 → NextAuth
  Adding SSO to existing product      → WorkOS

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Clerk — The Developer-First Default

Price: Free (10,000 MAU) → $0.02/MAU after, $25/month for organizations Stack support: Next.js, React, Remix, Astro, and more GitHub stars: N/A (closed source) Best for: indie hackers, early-stage B2C and light B2B SaaS

Clerk's key advantage is the tightest Next.js App Router integration of any auth provider:

// Clerk setup in Next.js (Next.js App Router):
// middleware.ts — protect routes:
import { clerkMiddleware, createRouteMatcher } from '@clerk/nextjs/server';

const isProtectedRoute = createRouteMatcher([
  '/dashboard(.*)',
  '/api/protected(.*)',
]);

export default clerkMiddleware(async (auth, req) => {
  if (isProtectedRoute(req)) {
    await auth.protect();
  }
});

export const config = {
  matcher: ['/((?!.*\\..*|_next).*)', '/', '/(api|trpc)(.*)'],
};

// Server components (zero boilerplate):
import { currentUser, auth } from '@clerk/nextjs/server';

export default async function DashboardPage() {
  const user = await currentUser();
  const { userId, orgId, orgRole } = await auth();

  return (
    <div>
      <p>Hello, {user?.firstName}!</p>
      {orgId && <p>Organization: {orgId}</p>}
    </div>
  );
}

// Client components:
import { useUser, useOrganization } from '@clerk/nextjs';

export function UserProfile() {
  const { user, isLoaded } = useUser();
  const { organization } = useOrganization();

  if (!isLoaded) return <div>Loading...</div>;

  return (
    <div>
      <p>{user?.emailAddresses[0]?.emailAddress}</p>
      {organization && <p>Team: {organization.name}</p>}
    </div>
  );
}

Clerk features:

• Email/password, magic links, OAuth (Google, GitHub, Apple, etc.)
• Passkeys (WebAuthn) — passwordless biometric auth
• Organizations and teams (multi-tenancy built-in)
• Role-based access control (RBAC)
• Pre-built UI components (sign-in, sign-up, profile, org management)
• User management dashboard (no-code admin)
• JWT templates (add custom claims for Supabase RLS, Hasura, etc.)
• SSO via SAML/OIDC (Organizations add-on: $25/org/month)

Clerk limitations:

• SSO costs extra ($25/org/month) — can get expensive at scale
• Can't fully self-host (hosted auth pages on accounts.clerk.dev)
• Pricing gets steep at enterprise scale (10K+ organizations)
• Less customizable UI than building your own

Clerk is right for:

• Next.js developers who want auth solved in under an hour
• B2C SaaS with optional team features
• Early B2B SaaS that may not need SSO for years
• Indie hackers and small dev teams

---

Auth0 — The Enterprise Workhorse

Price: Free (7,500 MAU, no organizations) → $23/month Essential → custom enterprise Stack support: Any framework, any language By: Okta (acquired 2021) Best for: teams expecting enterprise customers from day one

Auth0 has the most features of any auth provider but also the steepest learning curve:

// Auth0 with Next.js (App Router):
// app/api/auth/[auth0]/route.ts
import { handleAuth } from '@auth0/nextjs-auth0';

export const GET = handleAuth();

// middleware.ts:
import { withMiddlewareAuthRequired } from '@auth0/nextjs-auth0/edge';

export default withMiddlewareAuthRequired({
  returnTo: '/',
});

export const config = {
  matcher: '/dashboard/:path*',
};

// Server component:
import { getSession } from '@auth0/nextjs-auth0';

export default async function DashboardPage() {
  const session = await getSession();

  if (!session) redirect('/api/auth/login');

  return <Dashboard user={session.user} />;
}

// Client component:
import { useUser } from '@auth0/nextjs-auth0/client';

export function Profile() {
  const { user, error, isLoading } = useUser();

  if (isLoading) return <div>Loading...</div>;
  if (error) return <div>{error.message}</div>;

  return user ? (
    <div>
      <img src={user.picture ?? ''} alt={user.name ?? ''} />
      <h2>{user.name}</h2>
      <p>{user.email}</p>
    </div>
  ) : (
    <a href="/api/auth/login">Login</a>
  );
}

Auth0's enterprise features (the reason it exists):

• Universal Login — customizable hosted login page
• Organizations — multi-tenancy with per-org policies
• Enterprise Connections — SAML, WS-Federation, OIDC, LDAP
• SCIM provisioning — auto-provision users from enterprise IdPs
• MFA — TOTP, SMS, push notifications, WebAuthn
• Attack protection — brute force, breach detection, suspicious IP
• Anomaly detection — ML-based suspicious activity detection
• Fine-grained authorization (FGA) — relationship-based access control
• Log streams — export auth events to your SIEM
• Custom domains — auth.yourdomain.com

Auth0 pricing reality:

Free:    7,500 MAU, 2 social providers, no organizations
Essential: $23/month — still limited (no custom domains, limited enterprise features)
Professional: $240/month — 1,000 organizations included
Enterprise: Custom — SSO, SCIM, SLA, dedicated support

The catch: enterprise features require enterprise pricing. You can't add SAML SSO on the $23/month plan. Many teams start on Auth0, discover they need SSO at scale, and find themselves on $500+/month plans.

Auth0 is right for:

• Teams expecting enterprise sales from day one
• Companies with compliance requirements (SOC2, HIPAA, FedRAMP)
• Multi-language or multi-framework apps (Auth0 has SDKs for everything)
• Teams who need SAML SSO, SCIM, audit logs immediately

Auth0 watch-out: the migration off Auth0 is painful. User passwords are hashed with Auth0's key — you can't export them. Plan your exit strategy before going in.

---

WorkOS — The Enterprise Add-On

Price: Free (1M MAU for SSO) → $125/month for Audit Logs/SCIM By: WorkOS (YC-funded, founded by ex-Stripe Michael Grinich) Best for: adding enterprise features to an existing SaaS product

WorkOS is fundamentally different from Clerk and Auth0. It's not a full auth provider — it handles the enterprise-specific features (SSO, SCIM, Directory Sync, Audit Logs) while you keep your existing auth for regular users.

// WorkOS for SSO — your flow:
// 1. Regular users: still use Clerk/Auth0/Supabase Auth
// 2. Enterprise users: redirect through WorkOS for SSO

// app/api/auth/sso/route.ts
import WorkOS from '@workos-inc/node';

const workos = new WorkOS(process.env.WORKOS_API_KEY!);

// Step 1: Get authorization URL from WorkOS:
export async function GET(req: Request) {
  const { searchParams } = new URL(req.url);
  const organizationId = searchParams.get('org')!;

  const authorizationUrl = workos.sso.getAuthorizationUrl({
    organization: organizationId,
    redirectUri: `${process.env.NEXT_PUBLIC_APP_URL}/api/auth/sso/callback`,
    clientId: process.env.WORKOS_CLIENT_ID!,
  });

  return Response.redirect(authorizationUrl);
}

// Step 2: Handle SSO callback:
// app/api/auth/sso/callback/route.ts
export async function GET(req: Request) {
  const { searchParams } = new URL(req.url);
  const code = searchParams.get('code')!;

  // Exchange code for user profile:
  const { profile } = await workos.sso.getProfileAndToken({
    code,
    clientId: process.env.WORKOS_CLIENT_ID!,
  });

  // profile.email, profile.firstName, profile.organizationId
  // Now create or find user in YOUR database:
  const user = await findOrCreateUser({
    email: profile.email,
    name: `${profile.firstName} ${profile.lastName}`,
    workosProfileId: profile.id,
    organizationId: profile.organizationId,
  });

  // Create your session (your auth system):
  await setSession(user.id);

  return Response.redirect('/dashboard');
}

WorkOS features:

• SSO: SAML 2.0, OIDC — connect to Okta, Azure AD, Google Workspace, OneLogin, etc.
• Directory Sync (SCIM): auto-provision/deprovision users from enterprise IdP
• Admin Portal: no-code portal where enterprise IT admins configure SSO
• Audit Logs: structured log of all user actions (required for enterprise compliance)
• User Management: lightweight user directory (can replace your auth for enterprise)
• Magic Auth: passwordless login via email (alternative to SSO for smaller teams)

The WorkOS Admin Portal — why it matters:

// Generate Admin Portal link for enterprise customer's IT admin:
const { link } = await workos.portal.generateLink({
  organization: 'org_customer_id',
  intent: 'sso',         // or 'dsync' for SCIM
  returnUrl: 'https://app.yourdomain.com/settings/sso',
  defaultReturnUrl: 'https://app.yourdomain.com/settings',
});

// Send this link to the enterprise IT admin.
// They set up SSO without any engineering involvement.
// WorkOS guides them through Okta/Azure AD config step by step.

This is WorkOS's killer feature: enterprise IT admins can configure SSO themselves. No Zoom calls, no back-and-forth — your customer's IT department just follows the wizard.

WorkOS SCIM (auto-provisioning):

// Handle SCIM webhook from WorkOS:
// When enterprise adds user in Okta → WorkOS fires webhook → you create user
export async function POST(req: Request) {
  const event = await req.json();

  switch (event.event) {
    case 'dsync.user.created':
      await db.user.create({
        data: {
          email: event.data.emails[0].value,
          firstName: event.data.name?.givenName,
          lastName: event.data.name?.familyName,
          organizationId: event.data.organizationId,
        },
      });
      break;

    case 'dsync.user.deleted':
      await db.user.update({
        where: { workosUserId: event.data.id },
        data: { deactivatedAt: new Date() },
      });
      break;
  }
}

WorkOS is right for:

• SaaS products adding enterprise sales to an existing B2C/SMB product
• Teams that already have auth (Clerk, Supabase, etc.) and need to add enterprise features
• Products where SSO is a blocker for large deals (common in B2B SaaS)
• Avoiding Auth0's complexity for 90% of users while serving enterprise needs

---

Side-by-Side Comparison

Feature	Clerk	Auth0	WorkOS
Type	Full auth	Full auth	Enterprise add-on
Free tier	10,000 MAU	7,500 MAU	1M MAU (SSO)
Paid starts	$0.02/MAU	$23/month	$125/month
Next.js DX	🏆 Best	Good	N/A (add-on)
SSO (SAML/OIDC)	+$25/org/month	Enterprise plan	✅ Included
SCIM provisioning	+$25/org/month	Enterprise plan	✅ Included
Audit logs	❌	Enterprise plan	✅ Included
Admin portal	Limited	Limited	✅ Self-service
Multi-tenancy	✅ Built-in	Add-on	✅ Built-in
Custom domain	✅	Pro+ plan	N/A
Setup time	< 1 hour	2-4 hours	1-2 hours (SSO only)
Migration pain	Low	High	N/A

---

The Recommended Path

Stage 1: Pre-launch to first 1,000 users → Clerk — get auth done in an afternoon, free up to 10K MAU

Stage 2: 1,000 to 10,000 users, some B2B customers → Clerk + WorkOS — Clerk for regular auth, WorkOS when first enterprise customer asks for SSO

Stage 3: Enterprise-first from day one → Auth0 — if compliance and enterprise contracts are your primary market from the start

Cost at 5,000 users, 50 organizations:

Clerk:  $25/month (Organizations plan) × 50 orgs = $100-200/month
Auth0:  $240/month (Professional, includes organizations)
WorkOS: $0 for SSO, $125/month if you need Audit Logs

Clerk + WorkOS (most common path):
  Clerk: $50/month (~5,000 MAU)
  WorkOS: $0 (SSO free up to 1M MAU)
  Total: $50/month — much cheaper

---

Migrating Auth Providers: What It Actually Costs

The decision you make at launch has long-term lock-in implications that aren't obvious until you need to change.

Clerk lock-in is moderate. Your authentication is hosted on Clerk's infrastructure — you can't export hashed passwords because there are no passwords to export (Clerk handles them). Migrating away from Clerk means issuing password reset emails to all users, forcing them to set a new password in your new system. For a product with 10,000 users, that's a painful migration with real churn risk. Clerk does allow export of user metadata (emails, names, custom attributes), but the authentication credentials themselves are non-portable.

Auth0 lock-in is the highest of any option. Auth0 explicitly states that passwords are hashed with a key that can't be exported. Auth0's migration export provides user records but not authentication credentials. Migrating users out of Auth0 requires a bulk "silent migration" workflow where you keep both systems running simultaneously and migrate users as they log in by proxying their credentials to the old system. This is a months-long engineering project. Teams who enter Auth0 on the cheap lower tiers and hit enterprise pricing walls discover this migration complexity too late.

NextAuth/Better Auth lock-in is minimal. Both store credentials in your own database. Migrating to a different self-hosted auth library means updating the hashing algorithm and session handling, not migrating user data out of a third-party platform. This is a week of engineering work, not months.

The practical advice: if you're early-stage and can't predict your auth needs at 100,000 MAUs, choose an option that lets you migrate without holding your users' credentials hostage. Clerk's lock-in is acceptable for most SaaS products because Clerk's scaling costs at 100,000 MAUs ($2,000/month) are still less than the engineering time to build and maintain auth yourself. Auth0's lock-in is a strategic risk because the pricing cliff at enterprise scale is both significant and hard to escape.

The New Entrants Worth Watching

Beyond the three main options covered, two auth providers have been gaining meaningful adoption in 2026 boilerplates:

Better Auth has become the default choice for TypeScript-first projects that want self-hosted auth without NextAuth's gaps. It ships with 2FA, passkeys, and organizations built-in as plugins — features NextAuth still requires third-party packages for. The MIT license and database-agnostic adapter layer mean no vendor lock-in at any scale. The tradeoff is that it's newer and has less ecosystem coverage than NextAuth.

Supabase Auth is worth mentioning explicitly because it's the default for the large Supabase-native boilerplate ecosystem (Supastarter, Makerkit's Supabase variant, dozens of community starters). If your boilerplate is built around Supabase, using Supabase Auth is almost always the right choice — it's tightly integrated, provides Row Level Security JWT claims, and is essentially free within Supabase's pricing model.

Testing and Local Development for Each Auth Provider

How well each auth provider supports local development has a real impact on developer velocity — especially for teams running integration tests in CI.

Clerk's local development uses the @clerk/testing package, which provides a testing-mode client that bypasses real authentication flows. You configure a CLERK_SECRET_KEY for your test environment, and Clerk's backend SDK accepts it without making real API calls. The pre-built test user fixtures let you authenticate as a specific user in unit tests without setting up real accounts.

The main friction: Clerk's pre-built UI components (<SignIn />, <SignUp />) render iframes to accounts.clerk.dev. In a purely local (offline) development environment, these components won't load. For developers who travel or work offline, this is a real constraint. Most workarounds involve mocking the Clerk context in tests and pointing the app to a test Clerk application in development.

Auth0's local development uses the Auth0 Management API with development tenant credentials. Auth0 doesn't offer a local emulator — all auth flows hit Auth0's servers. The @auth0/nextjs-auth0 SDK supports a testing utility that lets you mock sessions in tests, but end-to-end testing always requires a live Auth0 tenant.

For CI pipelines, Auth0 requires a dedicated "test" application configured in the Auth0 dashboard with specific allowed callback URLs and CORS settings. The setup is well-documented but requires Auth0 dashboard access for each new environment.

WorkOS local development is the most friction-free of the three for SSO testing. WorkOS provides a "DSSync Simulator" and "SSO Simulator" in their dashboard — you can trigger SCIM and SSO events against your local webhook endpoints without configuring real enterprise IdPs. For testing the SCIM provisioning flow (user created in Okta → your app receives webhook → user gets created), the simulator removes the need for real Okta credentials in development. This is a meaningful practical advantage when building and debugging SSO flows.

RBAC Patterns: Role-Based Access Control

B2B SaaS consistently needs role-based access control — the ability to assign different permissions to different users within an organization. Here's how each provider approaches it.

Clerk's RBAC is built into the Organizations feature. Each organization membership has a role (by default "admin" or "member"), and you can define custom roles in the Clerk dashboard. The orgRole is included in the JWT and accessible via auth().orgRole in Next.js server components:

const { orgId, orgRole } = await auth();

if (orgRole !== 'org:admin') {
  return NextResponse.json({ error: 'Admin required' }, { status: 403 });
}

Custom roles (e.g., "billing_manager", "developer") require the Organizations Pro add-on at $25/organization/month. For most SaaS products with simple admin/member distinctions, the default roles are sufficient and free within the standard organizations pricing.

Auth0's RBAC is more granular but significantly more complex to configure. Auth0 supports roles, permissions, and role-to-permission mappings in the Auth0 dashboard. You add permissions to roles, add roles to users, and include roles in the JWT via Auth0 Actions (JavaScript functions that run in the auth pipeline). The setup requires Auth0 dashboard configuration plus Action code — a reasonable lift for enterprise apps, overkill for simple admin/member patterns.

WorkOS doesn't provide RBAC directly. It provides the organization context and user identity — your application owns the permission model. This is appropriate given WorkOS's position as an add-on rather than a full auth provider. If you're using WorkOS alongside Clerk, Clerk handles RBAC for regular users and WorkOS handles SSO authentication; the two systems cooperate without conflict.

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Compare boilerplates by their auth provider integrations at StarterPick.

See our Better Auth vs Clerk vs NextAuth comparison for the complete 2026 auth library analysis.

Browse best SaaS boilerplates for 2026 and filter by your preferred auth provider.

Choosing your full SaaS tech stack? The Next.js SaaS tech stack guide covers how auth provider selection fits alongside database, ORM, and billing decisions.

For the open-source alternatives to hosted auth providers, the best free open-source SaaS boilerplates guide covers boilerplates with self-hosted auth built in.