A native macOS network monitor — devices, history, alerts.
Every connected device, every Wi-Fi neighbour, every risk worth knowing about, at a glance.

Website · Documentation · Download

Netfox is a native macOS app that gives you a live, honest view of who's on your network. Instead of a vendor router app or a stale ARP table, you get five focused tools sharing the same store — a finding in one shows up everywhere it matters.

• Live device list — every machine on your network, with hostname, MAC, IPv4/IPv6, vendor, and online state
• Multi-source discovery — Bonjour/mDNS, the system ARP cache, SSDP, NetBIOS, and active ICMP probing run in parallel. Apple devices, smart-TVs, dumb IoT, quiet hosts — all in the same list
• Per-device history — first seen, last seen, every transition (online ↔ offline, IPv4 learned/changed, hostname changed, vendor learned) on a timeline that survives across launches
• Security checks — one-click Scan All Devices probes every reachable host against a curated home-network port set (SSH, Telnet, RDP, VNC, SMB, HTTP, MQTT, MySQL/PostgreSQL/Redis, …) and shows risk badges per device. The Risk Inspector explains each finding in plain English
• Wi-Fi diagnostics — every wireless network your Mac can see, with live signal-strength history, channel, band, and security mode. Cross-link to "devices on this network" when the selected row is the AP you're connected to
• Five-kind alerts — new device, returning after long absence, risky arrival, port-state change, new service. In-app inbox plus native macOS notifications, with a persistent log of everything that ever fired
• Public IP + VPN awareness — shows your network's outward face on the Overview, with a live chip when the connection is being tunnelled
• Tagging — right-click any device to give it a custom name and icon. Useful for the cryptic vendor-name rows ("Espressif Inc.") that mean nothing without context
• Demo Mode — one-keystroke (⌘⇧D) privacy mask for screenshots and screen-shares: device names collapse to Computer #1, MACs lose the last three octets, IPv6 loses everything past the first hextet, Wi-Fi SSIDs become Network #N
• Native macOS UI — SwiftUI throughout, modern look, follows system appearance
• No account, no cloud, no telemetry — every observation lives on your Mac
• Universal binary — runs on Apple Silicon and Intel Macs
• Auto-updates — built in, signed

→ Download the latest version

After downloading, open the DMG and drag Netfox into your Applications folder. Launch it normally — the app is signed with Apple Developer ID and notarized by Apple, so Gatekeeper accepts it on first open.

• macOS 15 (Sequoia) or later
• A local network — Wi-Fi, Ethernet, or anything macOS reports as an interface with a subnet
• The Wi-Fi tool requires Location permission (macOS gates SSID details there). Netfox asks once the first time you open it; data never leaves your Mac.

Full documentation, screenshots, FAQ and roadmap at netfox.app.

This repo hosts the marketing site and release downloads for Netfox. The app source lives in a separate repository.

The site is built with Next.js 16, Mantine 9 and Nextra 4.

yarn install
yarn dev

Then visit http://localhost:3000.

MIT