Netglow

Wi-Fi scanner for Android

Who is on my Wi-Fi? See every device, by name

Netglow scans your Wi-Fi and lists every device with its name, maker and address. Names you give stay, even after a reinstall. Check the network for cameras, and use ping, traceroute and DNS tools.

Free scans Unlimited, with no account and no ads.

What is in the app, free

Scan as often as you like. Names, the camera check and every tool cost nothing.

  • 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.

The camera check, and what it cannot see

It 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, named like a camera or made by a camera maker. It is a good extra check for a holiday rental or a hotel Wi-Fi.

It cannot see cameras that only record to a card, use mobile data or sit on another network. No phone app can promise to find every camera, so treat it as one check among others.

Pro, an optional extra

Scanning, names, the camera check and every tool stay free for good. Pro adds these, for one payment.

  • 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.

  • 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.

Free to use. Pro is paid once.

One payment, no subscription.

You see the price on Google Play.

Get it on Google Play
  • No ads
  • No account
  • No analytics
  • No subscription

Questions

Is it really free?

Yes. Scans are free and unlimited, with no account and no ads. The camera check, the names file and every tool are free too. Pro is an optional extra, paid once, and never needed to scan.

What does Pro add?

Background watch, history for good, several networks, a deep port check, blocking an app with Shizuku, export and a widget. It is one payment on Google Play, with no subscription.

How does Background watch work?

It is part of Pro and it is off until you turn it on. Every 15 minutes, or as often as you set, Netglow checks your Wi-Fi and builds a timeline of who joined and who left. When something new joins, you get a note.

Does the camera check find every camera?

No, and no app on a phone can. The camera check lists devices on your Wi-Fi that answer as a camera or have video stream ports open, and camera hotspots nearby. It cannot see cameras that only record to a card, use mobile data, are wired to something else or sit on another network. Use it as one check among others, for example in a holiday rental.

Why does it not show every maker or address?

Since Android 10, apps can no longer read the hardware (MAC) address of other devices. Netglow shows the maker and model when a device tells it, through mDNS, UPnP, NetBIOS or WS-Discovery. Some devices say nothing, and those show as unknown. With the free Shizuku app running, Netglow can read every hardware address again, so makers show for those too.

Can it block a device on my Wi-Fi?

No. Netglow cannot kick a device off your router. You can block an app on this phone with Firewall, our separate free app, or with Shizuku mode on Android 14 and up. Netglow runs no VPN of its own.

What is Shizuku mode?

Shizuku is a free app that lets other apps run a few commands with the rights a computer cable has. When you run it and allow Netglow, scans read every device's hardware address, and Pro can block an app in Android's own firewall. Android drops those blocks on every reboot; Netglow sets them again once Shizuku runs. Everything stays on your phone.

What is the devices.json file?

A plain text file with every device, every name it announced and every rename you made. Netglow saves it after each scan and rename, in a folder you pick once. After a reinstall or on a new phone, load it back and your names return.

Why does it ask for location?

Android requires location access before an app may read the Wi-Fi name and nearby Wi-Fi networks. Netglow uses it for those two things only. Everything else works if you say no.

Is it safe to scan?

Netglow only asks devices to announce themselves. It never tries passwords, never looks for weak spots and never reads other devices' traffic. Use it on networks you own or may test.

Where do I report a bug?

By email to zanoski.marko@gmail.com.

How Netglow treats your data is on the privacy page.