Show HN: SubnetLens – a concurrent local network scanner built in Go with a TUI

Category: cli-tool

Tags: network-scanner, cli-tool, tui, go, security-tool

Score: 6.5/10 (Innovation: 5, Technical: 7, Documentation: 8, Utility: 6)

SubnetLens is a concurrent local network scanner built in Go that combines multiple discovery methods (TCP, ICMP, ARP, mDNS) with a modern TUI interface. It's interesting because it packages network scanning capabilities with OS fingerprinting, MAC vendor resolution, and both CLI/TUI interfaces in a single binary. The project demonstrates solid engineering with concurrent scanning, comprehensive testing, and cross-platform support.

Target audience: devops, security-engineers, network-administrators

Repository: https://github.com/ostefani/subnetlens · Go · MIT · 17 stars

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