ManageEngine OpUtils vs OpenIPAM

ManageEngine OpUtils is a network management toolset for monitoring, diagnosing, and troubleshooting IP resources and network devices. It manages IP address space, maps devices to switch ports, and combines DNS, DHCP, and IP address management, including Microsoft DNS and DHCP. More than 30 network utilities cover diagnostics, SNMP, Cisco, address monitoring, and connectivity. Security controls can detect rogue devices, alert on IP conflicts and ARP spoofing, and apply DHCP MAC-based filtering. Role-based access control and two-factor authentication are supported.

OpUtils integrates with Microsoft DHCP and DNS, Cisco Meraki controllers, and ManageEngine products including OpManager and NetFlow Analyzer; APIs can connect it with third-party IT management and service desk software. The downloadable product is offered for 64-bit Windows and Linux and is accessible through a browser. Mobile apps for iOS and Android monitor network addresses and ports. The free edition costs nothing and supports one Class C subnet and one switch. The Professional plan is priced on request, and Management is priced on request. A 30-day trial is available.

OpenIPAM is a free, open-source IP address management and CMDB tool for network and infrastructure inventory. It manages CIDR subnets, IP assignments and reservations, duplicate-IP conflicts, VLANs, IP ranges, and subnet calculations. DHCP tracking covers scopes, leases, reservations, options, and utilization. Its inventory supports 14 host types, hardware lifecycle tracking, locations and racks, maintenance windows, and company records. It can run in a browser with local storage or use an optional Python Flask backend with server-side SQLite for multi-user access. Server mode adds SAML 2.0 single sign-on with Microsoft Entra ID, authenticated routes, and a REST API for entity management, cross-entity search, dashboard statistics, and JSON backup or import. The project describes signed session cookies with an eight-hour lifetime and user-attributed audit entries. CSV host import and JSON backup and restore, including DHCP data, are supported. Browser-mode data stays in the browser; server-mode data is stored in the server-side SQLite file. The plan costs nothing. Current browser support covers Chrome, Firefox, Safari, and Edge, with WebAssembly and ES6+ required.