Experts Helping Customers: Comparing Okta Customer Identity and Auth0

The primary difference between Okta Customer Identity (OCI) and Auth0 is the target user and implementation method. OCI is an enterprise-first platform built for IT administrators who need out-of-the-box, scalable identity policies with minimal coding. Auth0 is a developer-first platform offering granular, pro-code customization (via Node.js Actions) for teams building bespoke customer-facing applications.

Choosing between Auth0 and Okta Customer Identity (OCI) can feel confusing. Between recent rebrands and overlapping features, it’s easy to get lost. Okta offers two excellent customer identity services on two different platforms.

Here is how our deployment experts clarify the differences so you can select the right solution.

Platform and Naming History Clarified

• Okta Customer Identity (OCI): OCI lives on the same infrastructure as Okta Workforce Identity (OWI), but includes features optimized for managing external customer identities. Past names: Okta Customer Identity Solution (CIS), Okta CIAM.
• Auth0: Auth0 is deployed on its own platform and infrastructure, separate from the core Okta platform. For a period of time, Auth0 was rebranded to Okta Customer Identity Cloud (CIC). To keep things simple, it has reverted to the name developers know and love: Auth0.

OCI vs. Auth0: Key Feature Comparison

Both platforms exist on different infrastructures to solve different business problems. Here is a breakdown of how they compare across core identity capabilities.

Deep Dive: Extensibility and Customization

Extensibility allows teams to write custom logic to extend a product's authentication flow.

• Auth0 Extensibility (The Developer Route): Auth0 currently leads in deep code customization. It features an embedded code editor that allows developers to write Auth0 Actions—secure, tenant-specific, versioned functions written in Node.js that execute at specific points in the identity flow. For low-code options.
• Auth0 Forms provides a visual editor for business logic, though it currently requires writing an Action to render.
• OCI Extensibility (The Admin Route): OCI provides admin-friendly, low to no-code features that empower IT teams to deploy sign-in solutions without relying on engineering sprints. While pro-code extensibility is possible using Okta inline hooks, it requires standing up and maintaining your own external services.

The Final Verdict

If your organization needs a secure, out-of-the-box solution with low developer lift—and you prioritize centralized governance—choose OCI.

If your team is building a modern consumer application, needs granular control over every step of the identity flow, and has the developer resources to write custom code—choose Auth0.

Whatever platform you choose, you’re in great hands with the Okta ecosystem!