Alternatives to Microsoft Active Directory for all platforms with any license



Indie / Classic

Other Platforms

  • Samba icon


    Samba is the standard Windows interoperability suite of programs for Linux and Unix. Since 1992, Samba has provided secure, stable and...

    Open Source Mac Linux BSD

  • Zentyal icon


    Zentyal is an email and groupware solution, natively compatible with Outlook, for those seeking a Microsoft Exchange alternative on...

    Open Source Linux

  • OpenLDAP icon


    OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol. The suite includes: slapd -...

    Open Source Mac Linux BSD

  • FreeIPA icon


    FreeIPA is an integrated security information management solution combining Linux (Fedora), 389 Directory Server, MIT Kerberos, NTP...

    Open Source Linux

  • 389 Directory Server icon

    389 Directory Server

    Enterprise-class open source Linux LDAP server. Hardened by real-world use, full-featured, supports multi-master replication. 389 DS...

    Open Source Linux CentOS Fedora

  • ApacheDS

    ApacheDS™ is an extensible and embeddable directory server entirely written in Java, which has been certified LDAPv3 compatible by the...

    Open Source Mac Windows Linux

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