Purple Knight VS AD FastReporter

PingCastle - Because the Active Directory security lies in the process and not in expensive tools, our solution is simple: download PingCastle and apply its methodology.

LepideAuditor - LepideAuditor Suite - A change auditing software for Active Directory, GPO and Exchange Server.

ARKAD - Active Directory Reporter - Reporting tool for Active Directory and Azure AD with built-in reports on Users, Contacts, Groups, Computers, Security, Tenants, Domains and Roles. Schedule AD Reports, export & email AD Reports to multiple users.

NetWrix Auditor - Configuration Auditing of IT Infrastructure

Sysmalogic AD Report Builder - Active Directory Report and Scheduler Quickly find AD info to match your clipboard content

ManageEngine ADAudit - ManageEngine ADAudit is a real-time windows active directory auditing tool.