LDAP Browser is a Browser software developed by IIT Engineering. After our trial and test, the software is proved to be official, secure and free. Here is the official description for LDAP Browser:

EditByMarydown: Softerra dap td0001 browser is unique product w/o known analogs -- it have been developing specially for Win32 platforms. Softerra LDAP Browser provides convenient interface to LDAP directories in Explorer-like style with integrated editing capabilities. It connects to any LDAP v2 and v3 servers and has LDIF file exporting.
Browsing, searching and editing of the DIT.
Browsing
easy navigation through the hierarchical DIT
viewing of entries' contents
Editing
adding, removing, modifying and editing of a single entry or an attribute
copying, renaming, deleting, and moving entries or entire sub trees in DIT
Searching
search results can be saved into an LDIF file
LDIF support. Entire trees and single entries can be easily exported to and imported from LDIF.
Object templates. Object templates are used for creating and adding new entries. The templates can be manually or automatically (from existing entries) created.
Binary value support. Attribute contents can be saved or loaded from a file.
LDAP v3 aware. Handles and manages referrals, allows for specifying and displaying operational attributes and also for retrieving the naming contexts from the server root DSE.
SSL support.
Drag and drop, Copy-and-paste interface. Allows for copying and pasting or dragging and dropping entries or attributes between multiple instances or within a single instance of the browser.
Named sessions. Allows for working with LDAP severs with different configurations.
Attribute viewers/editors. Each attribute can be associated with a particular Viewer/editor that helps to display/edit the contents of the attribute in a specific manner.