Neat IP Address Planner - NIPAP is the best open source IPAM in the known universe, challenging classical IP address management (IPAM) systems in many areas.

A small tool to render ACLCL (ACL Configuration Language) to various network equipment

IPv4 and IPv6 prefix aggregation tool

phpipam development repository

An open source (GPL v3) Data Center Inventory Management (DCIM) application.

Monitor an instance of an anycast DNS cache

web pages (PHP) for distributed.net stats

Community-based GPL-licensed network monitoring system