Casdoor vs Auth0

An open-source alternative to Auth0

Auth0 is a proprietary identity service from Okta, priced by monthly active users. Casdoor is open source: run it yourself for free, or let us host a dedicated instance for a flat monthly price.

See Casdoor Cloud pricing Self-host for free

Casdoor and Auth0 at a glance

	Casdoor	Auth0
Source code	Open source (Apache-2.0)	Proprietary
Where it runs	Casdoor Cloud, or your own servers with Docker or Kubernetes	Auth0's cloud; Private Cloud on AWS or Azure, run by Okta, is available on Enterprise plans
Pricing	From $25/month per dedicated instance, with no per-user fees; self-hosting is free	Priced by monthly active users (MAU), with separate plans for B2C and B2B apps
Moving between cloud and self-hosted	Same software either way: export your data and move	Not self-hostable

Information about Auth0 is from its public website as of October 2026 (Auth0 pricing, Auth0 Private Cloud) and may have changed. Auth0 is a trademark of its owner.

Why teams choose Casdoor

No MAU bill

Cloud plans are a flat monthly price, so more users don't mean a bigger invoice.

Run it anywhere

The same Apache-2.0 code runs in our cloud or on your servers, and you can move between them.

Authorization included

Casbin RBAC, ABAC and ACL are built in, instead of being left to your code.

Ready for AI agents

Casdoor can be the OAuth authorization server for your MCP servers, with tokens scoped to the tools a user allowed.

When Auth0 may fit better

You want a multi-tenant service and never plan to run identity yourself.
You need a vendor with SOC 2 or ISO 27001 reports for the hosted service today. Casdoor Cloud does not have them yet; teams with that requirement usually self-host Casdoor in their own certified environment.

Moving from Auth0 to Casdoor

Casdoor speaks OpenID Connect, OAuth 2.0 and SAML, so most apps only need a new issuer URL and client credentials. Export your users from Auth0 and import them into Casdoor, then switch apps over one by one. We can help plan larger migrations.

Plan a migration with us

FAQ

Frequently asked questions

Is Casdoor a drop-in replacement for Auth0?

Not a drop-in, but close for standard integrations: apps that use OpenID Connect, OAuth 2.0 or SAML switch by changing the issuer URL and client credentials. Logic in Auth0 Actions and other Auth0-specific features needs to be rebuilt with Casdoor's equivalents or your own code.

How does Casdoor's pricing compare with Auth0's?

Auth0 charges by monthly active users. Casdoor Cloud is from $25/month for a dedicated instance, with no per-user or per-MAU fees, and the open-source edition is free to self-host.

Compare

How Casdoor compares

Casdoor vs Okta Casdoor vs Keycloak

Ready to secure your next big move?

Put login, single sign-on, MFA, permissions and AI agent access behind one open-source platform, hosted by us or run by you.