Best authentication & identity for 2026
Sign-in, user management, SSO, SCIM, MFA. Build it yourself only if your auth IS your product. Otherwise the right call is buy, your CTO has better things to do than rotate refresh tokens.
What to look for
The four questions that actually decide a authentication & identity pick, once you answer these, the rest is feature-list noise.
- ✓Time-to-first-sign-in from npm install
- ✓SSO/SAML support (mandatory for enterprise plans)
- ✓Free-tier MAU ceiling
- ✓Session security defaults (cookie flags, CSRF, refresh rotation)
All authentication & identity we cover
Click through for the full review, pricing, alternatives, comparisons.
WorkOS
Enterprise-readiness platform: SSO, SCIM, audit logs, directory sync. Built for SaaS shipping enterprise plans. Pay-per-connection pricing.
Stytch
Passwordless auth — magic links, OTP, biometrics, session management. Generous free tier; usage-based scaling. Stronger consumer-app fit than Clerk for high-MAU.
Clerk
Drop-in auth + user management for Next.js, React, Remix. Free up to 10K MAUs. The ergonomic choice when you do not want to build sign-in/up flows yourself.
Auth0
Okta-owned identity platform. Enterprise-grade SSO, MFA, RBAC. The default when you need SAML/SCIM and an audit trail your customer's security team will sign off.