Enterprise-class open source Linux LDAP server. Hardened by real-world use, full-featured, supports multi-master replication. 389 DS can be downloaded for free and set up in less than an hour using the graphical console.
Cost / License
- Free
- Open Source
Platforms
- Linux
- CentOS
- Fedora
Zeroshell is a Linux distribution for servers and embedded devices aimed at providing the main network services a LAN requires. It is available in the form of Live CD or Compact Flash image and you can configure and administer it using your web browser.
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Linux
- Self-Hosted



Kerio Connect makes email, calendars, contacts and task management easy and affordable. With Kerio Connect, you have immediate, secure access to your communications anytime, anywhere, on any device - without complexity or expensive overhead.
Cost / License
- Paid
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux
- Online

IntelliEnterprise is the one-stop-shop Intranet for managing and discovering content, connecting users and offering enterprise search.


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RCDevs' OpenOTP Security Suite is an all-in-one enterprise solution for multi-factor authentication (MFA), identity and access management (IAM), single sign-on (SSO), public key infrastructure (PKI), network access control (NAC), and mobile badging.
Cost / License
- Paid
- Proprietary
Platforms
- Android
- iPhone
- Self-Hosted



LEX - The LDAP Explorer is a GUI based administration tool running on windows platforms, which is able to browse and manage LDAP directory systems. For the LEX user, the look and feel while working with the directory structure is very similar to the .
Cost / License
- Paid
- Proprietary
Platforms
- Windows


LABE is a web-based LDAP Address Book Editor. It makes the setup and use of LDAP addressbooks easy and strives to support a wide range of client software.
Cost / License
- Free
- Open Source
Platforms
- Linux
- Online
- BSD
- Self-Hosted



OpenDJ is a directory server which implements a wide range of Lightweight Directory Access Protocol and related standards, including full compliance with LDAPv3 but also support for Directory Service Markup Language (DSMLv2).
Cost / License
- Free
- Open Source
Platforms
- Windows
- Linux
- Self-Hosted

Wren:DS is an LDAPv3 compliant directory service providing a high performance, highly available, and secure store for the identities managed by your organization.
Cost / License
- Free
- Open Source
Platforms
- Self-Hosted
- Docker
Bottin is a LDAP server that uses Consul's key-value store as a storage backend, in order to provide a redundant (high-availability) LDAP server on a Nomad+Consul cluster. It is a reimplementation of superboum's Bottin using the Go programming language.
Cost / License
- Free
- Open Source
Platforms
- Self-Hosted































