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Head-to-head · OAuth Server Software

OpenIddict vs Casdoor

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score OpenIddict #5 in OAuth Server Software 8.9/10 Free plan Free plan✓ 5 of 5 features Visit OpenIddict
Casdoor #8 in OAuth Server Software 8.6/10 Free plan Free plan✓ 5 of 5 features Visit Casdoor

OpenIddict leads on 0 checks, Casdoor on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreOpenIddict · 8.9/10
  • Free planboth

OpenIddict scores higher on our rubric for oauth server software: 8.9 against 8.6 out of 10; our editors rank them #5 and #8.

OpenIddict is the better fit for .NET OAuth and OIDC implementations. Casdoor is the better fit for free self-hosted OAuth deployments.

  • OpenIddict fits best

    .NET OAuth and OIDC implementations

  • Casdoor fits best

    Free self-hosted OAuth deployments

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Side by side

Feature OpenIddict 8.9/10 Visit ↗ Casdoor 8.6/10 Visit ↗
At a glance
Editor score 8.9 8.6
Ranking #5 in OAuth Server Software #8 in OAuth Server Software
Best for .NET OAuth and OIDC implementations Free self-hosted OAuth deployments
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Self-hosted
Platforms Web, Windows, macOS, Linux, iOS, Android Web, Windows, macOS, Linux
Support Email, Community, Docs Community, Docs
Integrations 100+ integrations 100+ integrations
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features OpenIddict 5/5 · Casdoor 5/5
OpenID Connect ✓ ✓
SAML support ✓ ✓
Self-hosting ✓ ✓
Token introspection ✓ ✓
Machine-to-machine auth ✓ ✓
Specs
Deployment model Self_hosted Self_hosted
Our review
Pros
  • Separate client, server, and token-validation stacks
  • Supports ASP.NET, ASP.NET Core, desktop, and mobile applications
  • Includes introspection, revocation, mTLS, and database integrations
  • OAuth 2.0, OpenID Connect, SAML, LDAP, and SCIM support
  • Includes token introspection, machine-to-machine auth, MFA, and WebAuthn
  • REST API, SDK integration, policies, and application management
Cons
  • Requires application code instead of providing a turnkey hosted service
  • SAML is handled through a commercial component, not the core feature set
  • Dedicated support depends on a custom support contract
  • Self-hosted deployment requires an organization-managed environment
  • Its listed integrations are narrower than its protocol coverage
  • The broad identity feature set may exceed simple OAuth-only needs
Our verdict

OpenIddict is a free, open-source .NET framework for building OAuth 2.0 and OpenID Connect clients, authorization servers, and token-validation services. Its independent client, server, and validation stacks can be used together or…

Read the review →

Casdoor is an open-source identity and access management platform for organizations building web applications, APIs, and AI-agent workflows. It provides OAuth 2.0 authorization and token issuance, OpenID Connect authentication, SAML 2.0…

Read the review →
  1. OpenIddictOAuth Server Software 8.9Free plan
  2. CasdoorOAuth Server Software 8.6Free plan

Strengths and trade-offs

  • OpenIddict — where it wins

    • Separate client, server, and token-validation stacks
    • Supports ASP.NET, ASP.NET Core, desktop, and mobile applications
    • Includes introspection, revocation, mTLS, and database integrations

    Where it doesn't

    • Requires application code instead of providing a turnkey hosted service
    • SAML is handled through a commercial component, not the core feature set
    • Dedicated support depends on a custom support contract

  • Casdoor — where it wins

    • OAuth 2.0, OpenID Connect, SAML, LDAP, and SCIM support
    • Includes token introspection, machine-to-machine auth, MFA, and WebAuthn
    • REST API, SDK integration, policies, and application management

    Where it doesn't

    • Self-hosted deployment requires an organization-managed environment
    • Its listed integrations are narrower than its protocol coverage
    • The broad identity feature set may exceed simple OAuth-only needs

More comparisons

All OAuth server software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update