Netfox: A free, privacy-focused native macOS network monitor for local device discovery
By
Giovambattista Fazioli
Sat on the counter overnight. Well past its best.
Summary
Netfox is a native macOS network monitor that discovers and displays all connected devices on a local network using multiple protocols (Bonjour, ARP, SSDP, NetBIOS, active probing). It provides per-device history tracking, five alert types for device changes, one-click security port scanning, and is built entirely in SwiftUI. The app is free, runs locally with no cloud dependency, no account required, and no telemetry — keeping all data on the user's Mac.
Key quotes
· 4 pulledCombines Bonjour, ARP, SSDP, NetBIOS and active probing to show every connected device — Apple gadgets, smart TVs, IoT, printers — in one live window.
No cloud, no account, no telemetry. Your data stays on your Mac. Free.
One-click security scan checks common ports with plain-English findings.
Built 100% in SwiftUI.
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