Apache Directory Server
6.0#23 in directory softwareFree planFree planLinuxmacOSSelf-hostedWindows
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ApacheDS is suited to people working on directory-server testing, development or education. The project does not recommend it for production use while data corruption issues remain.
Directify suits makers, marketers, and local business owners who want to build and manage a directory without coding. Its listing, payment, and automation features may appeal to operators planning to monetize or connect their directories.