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---
comments: false
type: index
stage: Manage
group: Authentication & Authorization
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
---
# GitLab authentication and authorization **(FREE SELF)**
GitLab integrates with the following external authentication and authorization
providers:
- [Atlassian](atlassian.md)
- [Auth0](../../integration/auth0.md)
- [Authentiq](authentiq.md)
- [AWS Cognito](cognito.md)
- [Azure](../../integration/azure.md)
- [Bitbucket Cloud](../../integration/bitbucket.md)
- [CAS](../../integration/cas.md)
- [Crowd](crowd.md)
- [Facebook](../../integration/facebook.md)
- [GitHub](../../integration/github.md)
- [GitLab.com](../../integration/gitlab.md)
- [Google OAuth](../../integration/google.md)
- [JWT](jwt.md)
- [Kerberos](../../integration/kerberos.md)
- [LDAP](ldap/index.md): Includes Active Directory, Apple Open Directory, Open LDAP,
and 389 Server.
- [Google Secure LDAP](ldap/google_secure_ldap.md)
- [Salesforce](../../integration/salesforce.md)
- [SAML](../../integration/saml.md)
- [SAML for GitLab.com groups](../../user/group/saml_sso/index.md) **(PREMIUM SAAS)**
- [Shibboleth](../../integration/saml.md)
- [Smartcard](smartcard.md) **(PREMIUM SELF)**
- [Twitter](../../integration/twitter.md)
NOTE:
UltraAuth has removed their software which supports OmniAuth integration. We have therefore removed all references to UltraAuth integration.
## SaaS vs Self-Managed Comparison
The external authentication and authorization providers may support the following capabilities.
For more information, see the links shown on this page for each external provider.
| Capability | SaaS | Self-Managed |
|-------------------------------------------------|-----------------------------------------|------------------------------------|
| **User Provisioning** | SCIM<br>Just-In-Time (JIT) Provisioning | LDAP Sync |
| **User Detail Updating** (not group management) | Not Available | LDAP Sync |
| **Authentication** | SAML at top-level group (1 provider) | LDAP (multiple providers)<br>Generic OAuth2<br>SAML (only 1 permitted per unique provider)<br>Kerberos<br>JWT<br>Smartcard<br>OmniAuth Providers (only 1 permitted per unique provider) |
| **Provider-to-GitLab Role Sync** | SAML Group Sync | LDAP Group Sync |
| **User Removal** | SCIM (remove user from top-level group) | LDAP (Blocking User from Instance) |
|
