Best Single Sign-On Software in 2026
Updated
In short: Apereo CAS is ranked #1 of 24 as of 3 October 2026, ahead of Google Cloud Identity and miniOrange Identity and Access Management. The best-ranked option with a free plan is Google Cloud Identity. The lowest first paid tier on this page is miniOrange Identity and Access Management at $2/mo.
24 single sign-on software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | SSO protocols | |
|---|---|---|---|---|---|---|---|---|
| 1 |  Apereo CAS | 8.7 | RecognisedAPIDocumented | Free | Yes | — | CAS, SAML 2.0, OAuth 2.0, OpenID Connect | View |
| 2 | Google Cloud Identity | 8.7 | RecognisedAPIDocumented | $7.20/mo | Yes | 6 /user/mo | SAML, OIDC | View |
| 3 |  miniOrange Identity and Access Management | 8.4 | RecognisedAPIDocumented | $2/mo | No | 2 /user/mo | SAML, OAuth, OpenID Connect, WS-Federation | View |
| 4 | Frontegg | 8.2 | RecognisedAPIDocumented | Free | Yes | — | SAML 2.0, OpenID Connect | View |
| 5 | Descope | 8.0 | RecognisedAPIDocumented | $249/mo | Yes | — | SAML 2.0, OAuth 2.0, OIDC | View |
| 6 | Amazon Cognito | 7.8 | RecognisedAPIDocumented | — | Yes | 0.01 /user/mo | SAML 2.0, OpenID Connect (OIDC), OAuth 2.0 | View |
| 7 | FusionAuth | 7.7 | RecognisedAPIDocumented | $162/mo | Yes | — | OAuth 2.0, OpenID Connect (OIDC), SAML v2 | View |
| 8 | LemonLDAP::NG | 7.5 | RecognisedAPIDocumented | Free | Yes | — | CAS 1.0/2.0/3.0, SAML 2.0/Shibboleth, OpenID Connect | View |
| 9 |  Shibboleth | 7.3 | RecognisedAPIDocumented | $279.50/mo | Yes | — | SAML 1.1, SAML 2.0, OpenID Connect, CAS | View |
| 10 |  Zoho Directory | 6.9 | RecognisedAPIDocumented | Free | Yes | — | SAML 2.0, OpenID Connect (OIDC), JWT | View |
| 11 | Oracle Cloud Infrastructure Secret Management | 6.9 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 12 | Ory | 6.8 | RecognisedAPIDocumented | — | Yes | — | SAML 2.0, OpenID Connect (OIDC), OAuth 2.0 | View |
| 13 | Keycloak | 6.3 | RecognisedAPIDocumented | — | — | — | OpenID Connect, OAuth 2.0, SAML 2.0 | View |
| 14 | LoginRadius | 6.1 | RecognisedAPIDocumented | — | No | — | SAML 1.1, SAML 2.0, JWT, OAuth 2.0, OpenID Connect | View |
| 15 |  WorkOS | 6.1 | RecognisedAPIDocumented | — | Yes | — | SAML, OIDC | View |
| 16 |  Stytch | 6.1 | RecognisedAPIDocumented | — | Yes | — | SAML, OIDC | View |
| 17 |  OneLogin Protect | 6.0 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 18 | Authelia | 5.6 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 19 |  JumpCloud Protect | 5.6 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 20 | Auth0 Guardian | 5.6 | RecognisedAPIDocumented | $35/mo | Yes | — | — | View |
| 21 |  SecureAuth Identity Platform | 5.4 | RecognisedAPIDocumented | — | No | — | SAML; WS-Federation; WS-Trust; OAuth 2.0; OpenID Connect; RADIUS | View |
| 22 | IBM Verify | 5.1 | RecognisedAPIDocumented | — | — | — | — | View |
| 23 |  Microsoft Defender for Business | 4.8 | RecognisedAPIDocumented | $3/mo | — | — | — | View |
| 24 | BIO-key PortalGuard | 4.6 | RecognisedAPIDocumented | — | No | — | — | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which single sign-on software is ranked first on Inferse?
Apereo CAS is ranked #1 of 24 with a score of 8.7. Google Cloud Identity is second and miniOrange Identity and Access Management third.
How many of these have a free plan?
11 of the 24 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, miniOrange Identity and Access Management has the lowest first paid tier we found: $2/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.