Article · Wikipedia archive · Last revised Jun 6, 2026

List of LDAP software

The following is a list of software programs that can communicate with and/or host directory services via the Lightweight Directory Access Protocol (LDAP).

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The following is a list of software programs that can communicate with and/or host directory services via the Lightweight Directory Access Protocol (LDAP).

Server software

Product Vendor Software licensea Initial Release Last Release Last Version Comments
389 Directory Server Red Hat GPL linking exception1 with exception to allow linking to non-GPL2 2005, Dec, 2024, May 15 3.1.0 Formerly Fedora Directory Server
Microsoft Entra ID Microsoft Proprietary 2008, Oct 27 2025 ? Known as Azure Active Directory (AAD) as well
Red Hat Identity Manager (IdM) Red Hat Proprietary 2008, Apr 1 2024 4.12 Fork of FreeIPA. Based on (RHEL 9.10
Active Directory Microsoft Proprietary 2000 2024, Nov 1 91 (WS 2025) Integrated on Windows Server
Authorized Entities Directory (Æ-DIR) Michael Ströder Apache 2.0 Based on OpenLDAP with additional tools
Apache Directory Server Apache Software Foundation Apache 2.0 2006, Oct 2023, Oct 23 2.0.0-AM27
Apple Open Directory - Apple Inc. Proprietary3 A fork of the OpenLDAP project
CA Directory CA Technologies Proprietary 2024, Dec 2 14.1 CA Tech was acquired by Broadcom Inc in 2018
Directory services - ForgeRock Proprietary A fork of the OpenDJ project
DirX Directory Atos (ex-Siemens)
FreeIPA GNU GPL 2008, Apr 1 2024, June 10 4.12.1 Using 389 Directory Server
IBM Tivoli Directory Server IBM Proprietary 2024, Oct 7 7.5
Mandriva Directory Server Mandriva development team GPL 2011 2021, Nov 23 Now part of Mandriva Management Console
Meerkat DSA Wildboar Software MIT Also supports the full X.500 directory protocols: DAP, DSP, and DOP
Nexor Directory
NetIQ eDirectory NetIQ Proprietary 1993 2023, May 31 9.2.8 Successor. Originally known as Novell Directory Services (NDS). Successr of eDirectory and NDS.
OpenDJ Open Identity Platform Community CDDL 2010, Dec 21 2024, May 7 4.6.3 A fork of the OpenDS project developed by ForgeRock, until 2016,4 now maintained by OpenDJ Community
OpenDS Sun Microsystems CDDL 2024, May 7 4.6.3 CDDL-licensed product no longer maintained, now Oracle Unified Directory.
OpenLDAP Kurt Zeilenga and others (based on Slapd) OpenLDAP Public License 1998, Aug 26 2024, Nov 26 2.6.9 LDAP clone from University of Michigan
Oracle Directory Server Enterprise Edition5 Oracle, based on Sun DSEE Proprietary 11g
Oracle Internet Directory Oracle Proprietary 2023, Jan 12.2.1.4
Oracle Unified Directory (OUD) Oracle, based on OpenDS Proprietary 2024, Apr 12.2.1.4 Based on OpenDJ
Red Hat Directory Server Red Hat GPL plus exception 2024, May 15 3.1.0 Commercial version of 389 Directory Server
Samba4 Samba Team GPLv3 1992, Jan 2025, Jan 6 4.21.3 Active Directory compatible Domain Controller
Slapd University of Michigan Free 1993 1996 Standalone LDAP Daemon. Superseded by OpenLDAP6
Sun Java System Directory Server Sun Microsystems 2011 2011 No longer maintained

Server software (Env + Auth + Access)

Name Environment Interface Authentication
Heterogenous Agnostic AD GUI CLI IAM SSO MFA NTLM KDC SA[S,M]L OAuth OIDC FS
Active Directory No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Apache Directory Server ? Yes No Yes Yes No Yes Yes No Yes Yes Yes Yes Yes
Red Hat Directory Server No No Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes
FreeIPA No No Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes
OpenLDAP Yes Yes No Yes Yes Yes Yes No No No Yes No No Yes
Microsoft Entra ID No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
  • FS: Federation Services

Server software (Features)

Name Features
Replication GPO LDIF PKI LDAP NTP DNS DHCP POP3 IMAP SMB CIFS BRS DRS
Active Directory Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Apache Directory Server Yes No Yes Yes Yes Yes No No No No No No Yes Yes
Red Hat Directory Server Yes No Yes Yes Yes No No No No No No No Yes Yes
FreeIPA Yes No Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Red Hat IdM Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
OpenLDAP Yes No Yes Yes Yes No No No No No No No No No
Azure Active Directory Yes Yes Yes Yes No No Yes No Yes Yes Yes Yes Yes Yes

Client software

Cross-platform

Linux/UNIX

Mac OS X

Microsoft Windows

Middleware

Notes

Notes

  1. Licenses here are a summary, and are not to be a full list of terms. Some packages may use libraries under different licenses.
References

References