OpenIPAM

What OpenIPAM is

OpenIPAM is a free, open-source tool for managing IP addresses and network and infrastructure inventory. It handles CIDR subnets, assignments and reservations, duplicate-IP conflict detection, VLANs, IP ranges, and subnet calculations. It also tracks DHCP scopes, leases, reservations, options, and utilization. Its inventory supports 14 host types, along with hardware lifecycle tracking, locations and racks, maintenance windows, and company records. OpenIPAM can run in a browser using local storage or use an optional Python Flask backend with server-side SQLite for multi-user access. Server mode supports SAML 2.0 single sign-on with Microsoft Entra ID, authenticated routes, and a REST API for entity operations, search, dashboard statistics, and JSON backup or import. CSV host import and database backup and restore, including DHCP data, are also supported. The project describes signed session cookies with an eight-hour lifetime and user-attributed audit entries. Browser-mode data stays in the browser, while server-mode data is stored in a server-side SQLite file. The browser version can be opened from downloaded files; a Linux setup script is included for the backend.