Best CIAM Platforms: Top 5 Customer Identity Tools
The leading customer identity and access management platforms, ranked.
CIAM platforms handle registration, login, and identity for the external users of an application: consumers (B2C) and business customers (B2B). This ranking reflects our 10-dimension capability rubric and editorial judgment, weighing not just raw score but fit: developer experience, authentication breadth, B2B and B2C suitability, enterprise readiness, security, and pricing. For workforce identity see the best IAM platforms.
The developer-first CIAM leader with the broadest SDK and protocol coverage.
Auth0 (now part of Okta) remains the reference for adding login to an app, with excellent SDKs, broad protocol support, extensibility via Actions, and both B2C and B2B capability.
Best for: Engineering teams wanting depth, flexibility, and one platform for B2C and B2B
Watch out: Per-MAU pricing climbs steeply at scale; plan to negotiate
Composable enterprise-readiness (SSO, SCIM) for B2B SaaS.
WorkOS sells clean, composable APIs for the enterprise features B2B SaaS needs, SSO, SCIM directory sync, and audit logs, that drop onto an app which already has auth. Free SSO connections up to a threshold are attractive early.
Best for: B2B SaaS teams adding enterprise SSO and SCIM to close deals
Watch out: Narrower than a full platform; you bring your own core authentication
Fast, focused enterprise SSO and SCIM for B2B SaaS.
SSOJet lets a B2B SaaS product add SAML, OIDC, and SCIM directory provisioning in days rather than quarters, the enterprise-readiness features that unlock upmarket deals, with transparent pricing and a developer-friendly, multi-tenant integration.
Best for: B2B SaaS teams that need enterprise SSO and SCIM shipped quickly
Watch out: A focused enterprise-readiness layer and a newer vendor, not a full consumer CIAM
API-first authentication with strong passwordless and passkey support.
Stytch is built API-first with deep passwordless, passkey, and fraud-prevention capabilities, appealing to teams that want modern, secure auth they control programmatically.
Best for: Teams prioritizing passwordless and passkeys with an API-first approach
Watch out: More assembly than a pre-built UI platform
Developer-first passwordless and passkeys with SSO included.
MojoAuth makes passkeys, magic links, and one-time passcodes fast to add, with SSO bundled rather than gated behind an enterprise tier, and transparent low-cost pricing that suits startups standardizing on passwordless.
Best for: Startups and developers wanting passwordless and passkeys at low cost
Watch out: An emerging vendor; enterprise governance depth and large references are still building
At a glance
| # | Vendor | Score | Best for |
|---|---|---|---|
| 1 | Auth0 | 4.6/5 | Engineering teams wanting depth, flexibility, and one platform for B2C and B2B |
| 2 | WorkOS | 4.5/5 | B2B SaaS teams adding enterprise SSO and SCIM to close deals |
| 3 | SSOJet | 4.2/5 | B2B SaaS teams that need enterprise SSO and SCIM shipped quickly |
| 4 | Stytch | 4.3/5 | Teams prioritizing passwordless and passkeys with an API-first approach |
| 5 | MojoAuth | 4.1/5 | Startups and developers wanting passwordless and passkeys at low cost |
Frequently asked questions
- What is the best CIAM platform in 2026?
- Auth0 tops our rubric for overall depth and flexibility, but the best choice depends on your need: WorkOS or SSOJet for B2B enterprise SSO and SCIM, Stytch or MojoAuth for passwordless and passkeys, and Auth0 for one platform across B2C and B2B.
- What is the difference between CIAM and IAM?
- CIAM secures an application's external customers at scale and prioritizes user experience, consent, and privacy. Workforce IAM secures employees and internal access. See our fundamentals guide on CIAM.
- Which CIAM platform is best for B2B SaaS?
- WorkOS and SSOJet are the strongest B2B-focused picks for adding enterprise SSO and SCIM on top of your product, while Auth0 covers both B2B and B2C in one platform.
- Are there open-source CIAM options?
- Yes. SuperTokens, Keycloak, Zitadel, and FusionAuth offer self-hostable customer identity, trading per-user pricing for operational ownership.