InSpectre is a self-hosted network visibility and security tool that discovers devices on a LAN using ARP sweeps and passive sniffing, performs CVE scanning, enables device blocking via ARP MITM, tracks user presence, and manages Docker containers — all without cloud connectivity or agents.
SubnetLens is an open-source local network scanner written in Go that offers both TUI and CLI interfaces. It supports multiple discovery methods including TCP, ICMP, ARP, and mDNS, with features like OS fingerprinting, vendor resolution, and concurrent scanning capabilities.