Finally, a single sign-on and user identity tool that's easy to use, administer, and integrate.
Users can come from anywhere – Active Directory, LDAP, Crowd itself, or any mix thereof. Control permissions to all your applications in one place – Atlassian, Subversion, Google Apps, your own apps.
Centralize Identity Management
Users from multiple directories can be centrally managed via a single administration console.
Manage application permissions in one place, from the same console.

SSO: Log in Once
Single sign-on support means users authenticate once and are automatically logged in to everything.
Make life easy for your users – give them one username and password to login to all the applications they need access to.
Crowd's SSO capabilities are limited to a single domain.

Connectors to Everything
Get started with connectors for Active Directory, LDAP, Sun, eDirectory, Directory Server, or create your own custom connector.
Connect and mange access to your applications – Atlassian Tools, Google Apps, Apache, Subversion, and more.

Integrate Your Apps
Give developers one REST interface to every user and group – no need to learn LDAPv3.
Change directories without impacting your applications.
Support for Multiple Directories
Map any combination of directories to a single application – perfect for managing users not in your main directory.
Manage their permissions for everything in the same place. It's easy to deactivate their account once they finish up.
Manage Group Memberships
Can't make group changes in your directory? Keep your users in LDAP and manage their memberships within Crowd.
Save time by setting up new users to be automatically added to specified groups.
Create User Aliases
Sometimes life is messy – "paul" in Subversion is "pdunphy" in Active Directory.
User aliasing allows one user to have different usernames in different applications.
Consolidate Your User Bases
Reduce administrative overhead by migrating users from all your Atlassian applications into Crowd.
Bundled importers let you centralise user management and provide single sign-on for all your Atlassian apps.
SSO: Log in Once
Users can authenticate once and be automatically logged in to all your Atlassian applications:
- JIRA
- Confluence
- FishEye
- Crucible
- Bamboo
Crowd's SSO capabilities are limited to a single domain. Learn more
Available, All the Time
Ensure users can access your other Atlassian applications – like Confluence and FishEye – while you are upgrading JIRA or performing maintenance that requires downtime.
Built to Scale
Simplify your complexities. Manage thousands of users, hundreds of groups, and tons of apps – Crowd handles it all.
Extend with Add-ons
Customize Crowd for your needs with custom authenticators and connectors shared on the Atlassian Plugin Exchange.
Windows Integrated and .NET Authenticators, and the Atlassian Command Line Interface are just a few of the plugins available.

Build Your Own
The Atlassian Developer Network gives you access to our SDK and remote API's – Java, REST, and SOAP – so you can build your own plugins to connect to your other applications and user directories.