IPAtlas

About

A subnet calculator and IP address manager drawn with MyGo's native UI, with no web view; prebuilt packages are for Windows and Linux. It works out IPv4 subnets and VLSM plans, compresses, expands and splits IPv6 prefixes, and keeps labeled IPv4 networks and addresses in a local SQLite database. A TCP scanner probes five ports to show which addresses answer, with MAC addresses on Linux.