18.5
Authgear is an identity-as-a-service platform for authentication and user management in web and mobile applications.
Free planOpen sourceAndroidiOSWeb
Alternatives to Apereo CAS
28.4
Ory provides identity and access management for customer apps, business partners, machines, and AI agents.
Free planOpen sourceWebAPILinux
38.3
FusionAuth is a Customer Identity and Access Management server for authentication, authorization, and user management.
Free planAndroidiOSWeb
- 4
Google Cloud Identity
Google Cloud Identity centrally manages users and groups as a cloud identity service.
Free planAndroidiOSWebAPI8.3Free plan - 5
Descope
Descope is a customer and agentic identity platform for authentication, user management, authorization, and identity journeys.
Free planAndroidiOSWebAPI7.6$249 usage-based - 6
Okta Customer Identity Cloud
Okta Customer Identity Cloud, also known as Auth0, helps organizations provide secure access to applications for users.
Free planAndroidiOSWebAPI7.6From $35 a month - 7
Microsoft Defender for Business
AndroidiOSAPImacOS7.5 - 8
Logto
Logto provides identity and access management for modern apps and SaaS products, covering authentication and authorization.
Free planAndroidiOSWebAPI7.4From $24 a month - 9
Auth0 Guardian
Auth0 Guardian is a mobile app for completing multi-factor authentication on iOS and Android.
Free planAndroidiOS7.3From $35 a month - 10
IBM Verify
AndroidiOSWebAPI7.3From $15,899.29 a year - 11
Kinde
Kinde is a cloud platform that combines authentication, access management, subscription billing, and feature management for SaaS products.
Free planAndroidiOSWebAPI7.3From $25 a month - 12
authentik
authentik is an open-source, self-hostable identity and access management product for organizations managing workforce and customer access.
Free planWebAPILinuxmacOS7.2From $5 a month - 13
Asgardeo
Free planAndroidiOSWebAPI7.1From $25 a month - 14
Abblix OIDC Server
Free planWebAPILinuxSelf-hosted7.0From $3,000 a year - 15
Duende IdentityServer
AndroidiOSWebAPI7.0From $5,750 a year - 16
Frontegg
Frontegg provides customer identity and access management for customer-facing applications.
Free planAndroidiOSWebAPI7.0Free plan - 17
Stytch
Stytch is an identity platform for applications used by people and AI agents, bringing authentication, authorization, and security tools together.
Free planAndroidiOSWebAPI7.0Free plan - 18
ZITADEL
ZITADEL provides identity and access management for customers, employees, devices, and services.
Free planWebAPILinuxmacOS7.0From $100 a month - 19
OpenIddict
Free planAndroidiOSWebAPI6.7Free plan - 20
Curity Identity Server
Curity Identity Server secures access for users, APIs, machines, and AI agents through a standards-based platform.
Free planWebAPILinuxmacOS6.6Free plan - 21
Keycloak
Keycloak is open-source identity and access management software that adds authentication to applications and secure services, leaving those systems…
Free planWebAPILinuxSelf-hosted6.5Free plan - 22
Casdoor
AndroidiOSWebAPI6.4 - 23
Amazon Cognito
Amazon Cognito provides sign-up, sign-in, access control, and brokered AWS service access for web and mobile applications.
AndroidiOSWebAPI6.2 - 24
Authelia
Authelia is an open-source authentication and authorization server and portal that adds multi-factor authentication and single sign-on to applications.
Free planWebAPILinuxSelf-hosted6.2Free plan - 25
LemonLDAP::NG
LemonLDAP::NG is free, self-hosted software for web single sign-on, access management, and identity federation.
Free planWebAPILinuxSelf-hosted6.2Free plan - 26
OpenAM
Free planWebAPILinuxSelf-hosted6.2Free plan - 27
Gluu Flex
WebAPILinuxSelf-hosted6.1 - 28
Dex
Free planWebAPILinuxSelf-hosted6.0Free plan - 29
Janssen Server
WebAPILinuxSelf-hosted5.8 - 30
oidc-provider
Free planAPISelf-hosted5.7Free plan