Authentication · 2026
The 5 best
Clerk alternatives
B2B teams leave Clerk when MAU-based pricing scales past budget, when enterprise SSO/SCIM sits behind the highest tier, or when support response times don't match production SLAs. Self-hosting and data residency are also common triggers.
Reviewed by Switchpoint Editors ·
What Clerk does
Drop-in auth, user management, and organizations for B2B SaaS.
Ranked picks
Our shortlist
- 1
WorkOS
Enterprise-ready auth purpose-built for B2B SaaS — SSO, SCIM, and directory sync as first-class primitives.
Top pickVisit- B2B SaaS shipping SSO/SCIM to enterprise customers without per-MAU pricing surprises.
- Free up to 1M MAU on AuthKit. SSO + Directory Sync priced per connection.
Best for
Pricing
Pros
- SSO/SCIM are first-class, not upsells
- Predictable per-connection pricing
- Excellent enterprise support and SLAs
Trade-offs
- UI components less polished than Clerk's
- Best fit is B2B — less optimized for B2C funnels
- 2
Supabase Auth
Open-source auth tied into a Postgres-backed BaaS — full data ownership.
- Teams that want auth + database in one platform and the option to self-host.
- Free up to 50k MAU. Pro $25/mo + $0.00325/MAU above.
Best for
Pricing
Pros
- Open source and self-hostable
- Tight Postgres + RLS integration
- Generous free tier
Trade-offs
- Org/team primitives are DIY
- Enterprise SSO is paid add-on
- 3
Auth0
The incumbent enterprise identity platform — broadest feature set and integrations.
- Larger B2B SaaS that need every enterprise compliance checkbox on day one.
- Free up to 25k MAU. B2B Essentials from $150/mo.
Best for
Pricing
Pros
- Enterprise-grade compliance (SOC 2, HIPAA, FedRAMP)
- Mature SDK ecosystem
- Strong support tiers
Trade-offs
- Pricing climbs fast past free tier
- Heavier to integrate than Clerk
- 4
Stytch
Developer-first auth with strong B2B org/role primitives and passwordless flows.
- B2B SaaS that want flexible auth UX without building org modeling from scratch.
- Free up to 10k MAU. B2B from $249/mo.
Best for
Pricing
Pros
- B2B-native org and RBAC primitives
- Excellent docs and DX
- Flexible UI — headless or pre-built
Trade-offs
- Smaller community than Clerk/Auth0
- Pricing steps up at the B2B tier
- 5
Keycloak
Battle-tested open-source IAM you run yourself — no MAU costs, full data residency.
- Teams with ops capacity that need on-prem or regulated-data deployments.
- Free, open source. Hosting and ops are on you.
Best for
Pricing
Pros
- Zero per-user cost
- Full data ownership and residency control
- Mature enterprise feature set (SSO, SCIM, federation)
Trade-offs
- You operate it — upgrades, scaling, security
- Steeper learning curve than hosted SaaS
Section
At a glance
| Tool | Best for | Pricing |
|---|---|---|
| WorkOS | B2B SaaS shipping SSO/SCIM to enterprise customers without per-MAU pricing surprises. | Free up to 1M MAU on AuthKit. SSO + Directory Sync priced per connection. |
| Supabase Auth | Teams that want auth + database in one platform and the option to self-host. | Free up to 50k MAU. Pro $25/mo + $0.00325/MAU above. |
| Auth0 | Larger B2B SaaS that need every enterprise compliance checkbox on day one. | Free up to 25k MAU. B2B Essentials from $150/mo. |
| Stytch | B2B SaaS that want flexible auth UX without building org modeling from scratch. | Free up to 10k MAU. B2B from $249/mo. |
| Keycloak | Teams with ops capacity that need on-prem or regulated-data deployments. | Free, open source. Hosting and ops are on you. |
Deep dives
More on Clerk
Some outbound links are affiliate links. They never change our rankings.