Tool register
All 9 tools, filed by job
Each tool is filed under its main job. Most do a little of the others too — phpIPAM and GestioIP scan their own subnets, OpUtils records as well as discovers — so every category comparison also borrows entries from the other two.
Holds the record
IPAM Software
Answers: “Where is the authoritative list of subnets, reservations and owners kept?” See the full comparison
Holds the recordGPLv3phpIPAMphpIPAM projectA self-hosted PHP web app that turns subnets, VLANs and VRFs into a browsable register and can ping-check it on a schedule.Self-hosted web app (PHP on Apache or nginx + MySQL/MariaDB) on Linux; DockerHolds the recordApache 2.0 + paidNetBoxNetBox LabsAn intent-first source of truth that models prefixes, addresses, VLANs and VRFs alongside the racks and devices that use them.Self-hosted (Python/Django + PostgreSQL + Redis on Linux) or NetBox CloudHolds the recordCommercial · trialSolarWinds IP Address ManagerSolarWindsA commercial IPAM on the SolarWinds platform that ties subnet scans to DHCP scopes and DNS records and alerts on conflicts.Windows Server 2012 R2–2025 with SQL Server; web consoleHolds the recordGPLv3GestioIPGestioIPA web-based open-source IPAM that discovers networks and hosts over SNMP, DNS and ping and keeps the results in a searchable register.Self-hosted web app (Perl + Apache/mod_perl + MySQL/MariaDB) on Linux; Docker ComposeHolds the recordCommercial · trialMicetroBlueCat (formerly Men & Mice)An overlay DDI product that sits on top of existing DNS and DHCP servers and cloud DNS and gives them one address register.Linux or Windows server (VM, bare metal or cloud); overlays existing DNS/DHCP
Reads the wire
Address Discovery Scanners
Answers: “Which addresses in this range really have something behind them right now?” See the full comparison
Reads the wireFree edition + paidManageEngine OpUtilsManageEngine (Zoho Corp.)An IP address and switch-port manager that scans subnets, tracks address status history and maps devices to switch ports.Windows or Linux server; web consoleReads the wireGPLv2Angry IP ScannerAnton KeksA small cross-platform open-source range scanner whose exports make a handy "what answered" column to hold against the record.Windows, macOS, Linux (Java; bundled in the Windows and macOS packages)Reads the wireFree personal · paid businessLizardSystems Network ScannerLizardSystemsA Windows range scanner that reports which hosts are up and which shared resources they expose; the latest release is from 2021.Windows (vendor lists Windows 7 to 10, Server 2008 R2 to 2016)
Draws the plan
Subnet Planning & Calculators
Answers: “How should this block be split before anything is configured?” See the full comparison