Casdoor vs Better Auth

An identity server, not an auth library

Better Auth is an MIT-licensed TypeScript framework that lives inside your application. Casdoor is a standalone identity provider that many applications, devices and AI agents can share. The choice is between auth in your code and an identity service next to it.

See Casdoor Cloud pricing Self-host for free

Casdoor and Better Auth at a glance

	Casdoor	Better Auth
Source code	Open source (Apache-2.0)	Open source (MIT)
Where it runs	A standalone server, self-hosted or Casdoor Cloud	Inside your application process, with optional hosted infrastructure
Pricing	From $6.67/month billed yearly per dedicated instance, with no per-user fees; self-hosting is free	Free framework; optional hosted features and enterprise tooling are priced separately
Protocols	OAuth 2.0, OIDC, SAML 2.0, CAS, LDAP, RADIUS and SCIM	Sessions, social login and OAuth/OIDC clients in the framework; SSO, SAML and SCIM are enterprise features
Admin console	Built in	Optional hosted dashboard; otherwise you build the admin surface

Information about Better Auth is from its public website as of October 2026 (Better Auth, Better Auth on GitHub (MIT)) and may have changed. Better Auth is a trademark of its owner.

Why teams choose Casdoor

One identity provider for every app

Web apps, SaaS tools, VPNs, Linux hosts and AI agents share the same users and policies.

Protocols beyond a web app

CAS, LDAP and RADIUS are included, for infrastructure that cannot embed a TypeScript library.

Administration out of the box

Users, organizations, applications, providers, sessions and audit in one console.

B2B organizations

Each customer gets its own users, applications, providers and administrators.

When Better Auth may fit better

You are building a single TypeScript application and want authentication to live in the same codebase and deploy as one unit.
Your requirements are sessions, social login and email/password, without LDAP, RADIUS, CAS or a separate admin console.

Moving from Better Auth to Casdoor

Better Auth is embedded in an application, so there is no server-to-server migration path. Moving to Casdoor means exporting users and checking password hash compatibility, then pointing the application at Casdoor over OIDC or SAML. Plan a reset or a gradual cutover if the hashes do not import.

Plan a migration with us

FAQ

Frequently asked questions

Is Better Auth a replacement for Casdoor?

They solve different problems. Better Auth adds authentication to one TypeScript application. Casdoor is an identity provider shared by many applications, devices and AI agents, with CAS, LDAP, RADIUS and a built-in admin console.

Is Better Auth open source?

Yes. Better Auth is MIT licensed. Some enterprise features, such as SSO, SAML and SCIM, and the optional hosted infrastructure, are commercial.

Can Casdoor import Better Auth users?

Users can be exported and imported, but password hashes have to match a format Casdoor can verify. Check the hash algorithm before promising users they can keep their passwords; otherwise plan a reset.

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.