Names, not just numbers
ARPradar asks every device the ways devices answer, so the list reads like an inventory instead of a column of IP addresses.
Who's there
Finds devices that ignore ping, reads each MAC address and names the manufacturer.
What they're called
Windows PCs, Macs, printers, TVs and smart plugs name themselves. Point it at a client's domain controller for its DNS names.
What they are
Switches, access points and UPSes report their model. Web admin pages give away the rest.
What's open
Common ports on every device, or right-click any one to check all 65,535.
What changed
Saved scans remember their devices. Rescan and new arrivals are tagged, missing ones show in red.
What to do next
Right-click to open a device's web page, its shares in Finder, a remote session, or wake it on LAN.
The rest of the toolkit
The checks you'd otherwise open five apps for, in one Tools menu.
- Ping⌘1Live response times and loss, with a running graph.
- Traceroute⌘2Every hop to a host, with names and times.
- DNS Lookup⌘3One click checks MX, SPF, DMARC, DKIM, autodiscover and SRV records for a domain.
- Wi-Fi Analyzer⌘5Nearby networks by channel and signal, so you can pick a clear one.
- Speed Test⌘7Download, upload and responsiveness.
- Subnet Calculator⌘8Type an address and mask, then scan the range it gives.
Keep it per client
Group saved scans under an organization. A site survey runs the lot in one go and files the results together, ready to export to Excel.
- Nov 6 09:12Site survey · Main office · 6 of 6 checks
- 09:12Connection · DHCP 10.20.30.1
- 09:12Wi-Fi · −51 dBm, 23 networks nearby
- 09:13Network scan · 63 online
- 09:13Speed test · 153 down / 171 up Mb/s
- 09:13DNS · example-a.com, 11 records
- 09:14Traceroute · 11 hops
Install
About a minute. No installer, no account.
- DownloadGet ARPradar.zip from the latest release and open it.
- Move it to ApplicationsDrag ARPradar into your Applications folder.
- Open it the first timeDouble-click ARPradar. If macOS stops it, see the note on the right.
- Allow Local NetworkClick Allow when macOS asks, so ARPradar can reach devices on your network.
“ARPradar can’t be opened”
Until the app is signed by Apple, macOS asks you to confirm it once. Open System Settings › Privacy & Security, scroll down, and click Open Anyway next to ARPradar.
For Wi-Fi network names, macOS also asks for Location. ARPradar never reads your location; it's how macOS guards Wi-Fi names.
Take a look at your network.
It's probably got more on it than you think.