Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · OAuth Server Software

Keycloak vs OpenIddict

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Keycloak #1 in OAuth Server Software 9.4/10 Open source ✓ 0 of 5 features Visit Keycloak
OpenIddict #5 in OAuth Server Software 8.9/10 Free plan Free plan✓ 5 of 5 features Visit OpenIddict

Keycloak leads on 0 checks, OpenIddict 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 scoreKeycloak · 9.4/10
  • Free planonly OpenIddict
  • Most featuresOpenIddict · 5 of 5

Keycloak scores higher on our rubric for oauth server software: 9.4 against 8.9 out of 10; our editors rank them #1 and #5.

Keycloak is the better fit for broad self-hosted identity deployments. OpenIddict is the better fit for .NET OAuth and OIDC implementations.

  • Keycloak fits best

    Broad self-hosted identity deployments

  • OpenIddict fits best

    .NET OAuth and OIDC implementations

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Keycloak 9.4/10 Visit ↗ OpenIddict 8.9/10 Visit ↗
At a glance
Editor score 9.4 8.9
Ranking #1 in OAuth Server Software #5 in OAuth Server Software
Best for Broad self-hosted identity deployments .NET OAuth and OIDC implementations
Pricing model Free Free
Starting price Open source Free plan
Free plan Not checked yet ✓ (best)
Free trial — —
Deployment Cloud, Desktop, Self-hosted Self-hosted
Platforms Web, Windows, Linux Web, Windows, macOS, Linux, iOS, Android
Integrations 10 integrations 100+ integrations
Features Keycloak 0/5 · OpenIddict 5/5
OpenID Connect Not checked yet ✓ (best)
SAML support Not checked yet ✓ (best)
Self-hosting Not checked yet ✓ (best)
Token introspection Not checked yet ✓ (best)
Machine-to-machine auth Not checked yet ✓ (best)
Specs
Deployment model Not checked yet Self_hosted
Our review
Pros
  • Supports OpenID Connect, OAuth 2.0, and SAML 2.0
  • Combines SSO, federation, MFA, and fine-grained authorization
  • Runs with VMs, containers, Kubernetes, and OpenShift
  • Separate client, server, and token-validation stacks
  • Supports ASP.NET, ASP.NET Core, desktop, and mobile applications
  • Includes introspection, revocation, mTLS, and database integrations
Cons
  • Organizations must deploy and manage the server themselves
  • SCIM support is preview functionality
  • SCIM is disabled by default
  • 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
Our verdict

Keycloak is an open-source identity and access management server for web applications, REST services, and other applications. It suits organizations that want to operate their own authentication layer across multiple services and…

Read the review →

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 →
  1. KeycloakOAuth Server Software 9.4Open source
  2. OpenIddictOAuth Server Software 8.9Free plan

Strengths and trade-offs

  • Keycloak — where it wins

    • Supports OpenID Connect, OAuth 2.0, and SAML 2.0
    • Combines SSO, federation, MFA, and fine-grained authorization
    • Runs with VMs, containers, Kubernetes, and OpenShift

    Where it doesn't

    • Organizations must deploy and manage the server themselves
    • SCIM support is preview functionality
    • SCIM is disabled by default

  • 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

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