Open Source User Management Systems

Authing quickly implements authentication and user management for any Web, App, and enterprise software to provide the most complete login solution for your customers and employees. Authing serves as an identity infrastructure, or Identity As A Service (IDaaS) for cloud computing. Authing focuses on identity and building social infrastructure for identity sharing across all SaaS software and users to help companies build a secure modern IT infrastructure that not only protects their business but also redefines the user experience. Authing is the foundation for secure connections between a complex identity ecology and an application ecology in which countless identities access applications and resources in a borderless way. Authing taking "API first" as the product cornerstone, all commonly used functions in the identity field are modularized and all capabilities are provided to developers through the full scene programming language SDK.

CUG user management: simple java api to create applications to support basic system adminstration taks. Escpecially tailored for administration of nds/groupwise servers with lang=dutch (NL) personal naming rules.

A UI-first Identity Access Management (IAM) / Single-Sign-On (SSO) platform supporting OAuth 2.0, OIDC, SAML and CAS, integrated with Casbin RBAC and ABAC permission management. Within a few steps, we can setup a Casdoor app and realize our authorization management. Casdoor has a front-end back-end separation architecture, with maneuverable web UI and supporting high concurrency. Casdoor is supporting multi-languages, using i18n to support multi-languages UI. For more languages support, welcome to propose in our community. Casdoor SDK provides many functions, such as identity authentication, user management, resource upload, etc. Access to Casdoor is very convenient, please visit How to Connect to Casdoor for details. Casdoor also support sign up directly. By filling your Username, Display name, Password and Email, after your receive your Email code, you can sign up in Casdoor.

Deadlock is a powerful, fully featured user management system primarily written to protect web directories and documents using Apache's htaccess and htpasswd. Deadlock is written in PHP and uses a MySQL database.

Yet another Generic User Management System for Apache/MySQL/PHP(AMP) custom application. ie: Asterisk PABX, Kannel-SMS Web Interface, Postfix-MySQL Mail Admin, Jabber-MySQL Account Admin, etc

The IU Autoconfig Server is a user management system for students, it provides a User Interface for System Administrators

A LDAP User Management System that uses PHP to create an easy to use interface.

phpMAS (Multisite Authorization System) is a cross-domain PHP user-management script. Using single DB(mysql) to manage users from other sites(or domains) like YAHOO or GOOGLE, it can be integrated into many public scripts (phpBB,myBB,wordpress...)

OrgLDAP is an extensible LDAP user management application supporting groups, *NIX (POSIX, Shadow), Samba and other account types, SSH public keys and sudo roles. It includes a reusable extensible library and a web-based front-end.

PHP User Management is a way of managing the /etc/password /etc/shadow and /etc/groups files for multipule hosts while not using using LDAP, or NIS. It will use the standard Unix User add and delete and later could be expanded to windows.

UMA is a PHP user management and authentication application. Supports PostgreSQL and MySQL databases. http://uma.halosrealm.com

Pow is a robust, modular, and extendable authentication and user management solution for Phoenix and Plug-based apps. Pow is built to be modular, and easy to configure. The configuration is passed to function calls as well as plug options, and they will take priority over any environment configuration. It's ideal in case you got an umbrella app with multiple separate user domains. The easiest way to use Pow with Phoenix is to use a :otp_app in function calls and set the app environment configuration. It will keep a persistent fallback configuration that you configure in one place. Pow ships with a session plug module. You can easily switch it out with a different one. Pow is extremely modular and fully customizable. As your platform scales, each moving part can be modified or replaced ad-hoc. Several extensions are included in Pow so you with no effort can add secure features to your app.

User management system for linux

Vitalnix is a suite consisting of a library providing unified methods to access different user databases (Shadow, LDAP, etc), tools for user/group management, and a program for managing users in batch, suitable for large systems.

Weblooker monitors serveral services on multiple systems for their status, up- and downtimes. A webgui and Android client to view the current status and logged downtimes is available as separately package.

PureUserAdmin is a PHP webbased user management tool for PureFTPd user databases.

SecureLock is a php and mysql authenication/login system for the web. Users and groups are linked to accounts and these accounts can be set to expire after a certain date, number of logins or be unlimited. SecureLock can be used for many projects at once