netglow

netglow

See who is on your Wi-Fi, give devices names that stay, and run a camera check that tells you what it cannot see. Scans are free and unlimited, with no account and no ads.

This is the user guide, and the place to report bugs and ask for features. The app itself is on Google Play.

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The Netglow Network screen after a scan: 5 devices now, 0 new today, 0 cameras, then the Everything Netglow does grid with Camera check, App traffic, Ping, Traceroute, Port check, DNS lookup, Wake on LAN, Wi-Fi channels, Network info and Router check, and the bottom bar Network, Cameras, Apps, Tools, Settings.

What Netglow does

Who is on my Wi-Fi

One scan asks the network in several ways at once: ping, mDNS, UPnP, NetBIOS and WS-Discovery, plus a short port check. Each device shows its name, maker and model when it says them, its address, and how it was found.

Names that stay

Give a device your own name. Netglow knows it again by what it says about itself, even on a new address. A history shows when each device was online and what joined today.

A names file you keep

Every device, every name it gave itself and every rename you made is saved in a plain devices.json file, in a folder you pick. Remove the app or change phones, and your names come back from it.

Camera check

Lists devices on your Wi-Fi that answer as a camera or have video stream ports open, and says why each one was flagged. It also looks for camera hotspots nearby. It tells you plainly what it cannot see.

Network tools

Ping, traceroute, port check, DNS lookup with every record type and Wake on LAN. Your address, gateway, DNS and subnet. A router check, and how crowded each Wi-Fi channel is around you.

Shizuku mode

With the free Shizuku app running, Netglow reads the hardware address of every device on your Wi-Fi, so makers show and devices that ignore ping are found too.

Your apps, with Firewall

With Firewall, our free firewall app, Netglow shows which servers each app on this phone talks to. Block an app there and watch its connections stop, or block it with Shizuku mode (Pro).

Made to be easy to read

Big touch targets, strong contrast, text that grows to 200 percent, and two columns on a tablet.

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A few screens

  • A device page named Router: buttons Rename, Open web page, Ping and Ports, then what it says about itself: address, found by, hardware address and first seen, and a list of open ports.
    A device page: rename it, ping it, check its ports.
  • The Timeline page: a Watch in the background button, then Today, hour by hour, with a row of lit squares for the Router and three unknown devices, and a note that no one joined or left yet.
    The timeline of who joined and who left.
  • The Shizuku mode page: what it adds (the maker of every device and block an app with no VPN, both Pro), a card saying Shizuku mode is on, a Scan now button and the list Blocked with Shizuku.
    Shizuku mode: makers for every device.

Pro, paid once

Scans, names, the camera check and every tool are free. Pro is an optional extra, a one time payment on Google Play, with no subscription.

Background watch
A timeline of who joined your Wi-Fi and who left, hour by hour, and a note when something new joins. Checked every 15 minutes, or as often as you set.
History for good
Every scan and every day a device was online, kept for good, not just 30 days.
Several networks
Home, office and family, each with its own devices, to browse while you are away.
Deep port check
Up to 1000 ports, or a range you type, on any device.
Shizuku makers
The maker of every device from its hardware address, and devices that ignore ping, with the free Shizuku app.
Block with Shizuku
Cut one app off the network in Android's own firewall, with no VPN, on Android 14 and up with the free Shizuku app.
Export
Your devices as a CSV or JSON file, for a sheet or a backup.
Widget
Devices online and new ones, on your home screen, with a Scan key.

Private by design

  • No account and no sign in.
  • No ads and no advertising identifiers.
  • No analytics or tracking libraries.
  • Nothing you scan or name is sent to us. There is no server of ours.
  • No selling or sharing of data, because we do not collect any.

Use Netglow on networks you own or may test.