Network Scanner

usamaiqb

1.1.11 · GitHub

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Network Android 8.0+ 3 weeks ago GPL-3.0

1.7k ShizuStore

11.2k GitHub

258 Stars

3 MB Size

More about this app

Offline, privacy-focused scanner that discovers devices on your local network with hostnames, open ports and device types, using Shizuku or root to read the ARP table so MAC addresses and vendors show on Android 10+

Network Scanner

A fast, privacy-focused network scanner for Android

Find every device on your local network, with its IP address, hostname, open ports, and device type. No ads, no tracking, no root required, and it works fully offline.

Download the latest APK from the Releases page.

Screenshots

Main Screen Devices List Device Details Device Open Ports Custom Icon Settings Screen

Features

Discovery

Ping sweep - Parallel ICMP sweep with TCP fallback for devices that block ICMP
ARP cache - Picks up devices without sending any traffic
mDNS / Bonjour - Finds AirPlay, Chromecast, printers, SSH, SMB, HomeKit, and more
SSDP / UPnP - Fetches friendly name, manufacturer, and model number
NetBIOS - Resolves hostnames and workgroups for Windows and Samba devices
Port heuristics - Identifies Cast-enabled TVs and similar devices when other methods come up empty
Shizuku / root - Optionally reads the ARP table with shell or root privileges, so MAC addresses also show on Android 10+

Device details

MAC address & vendor - OUI vendor lookup, with detection of randomized MAC addresses (see Known limitations)
OS fingerprinting - Detects Windows, Linux, macOS, router firmware, and printer OS from open ports and banners
Device type icons - Smartphones, laptops, TVs, routers, printers, NAS, and more
Port scanning - Deep scan of common ports with banner grabbing and version detection, or a full sweep of all 65,535 ports
Copy & open - Long press any detail to copy it, or tap an open web port to open it in your browser
Customization - Rename devices, assign icons, choose the network interface (Wi-Fi, Ethernet, VPN), and configure probed ports

Requirements

Android 8.0 (Oreo) or higher
A local network connection (Wi-Fi, Ethernet, or VPN)

Verification

Builds from this repository, Google Play and F-Droid are all signed with the same key. Verify the signing certificate rather than the APK file hash — each store repackages the APK, so file hashes differ while the certificate stays the same.

Package: com.networkscanner.app
Certificate SHA-256: CF:89:91:3C:18:DC:8E:F3:0C:88:F0:95:7C:C4:92:EA:EA:04:20:20:44:FD:D4:26:0D:9C:CB:CA:97:9E:0F:FA

Check it with an on-device verifier app, or apksigner verify --print-certs <apk>, which prints the same value in lower case without colons.

Permissions

INTERNET - Required by Android to open any network socket, including local-network scans; the app never contacts the internet
ACCESS_NETWORK_STATE - To check network connectivity
ACCESS_WIFI_STATE - To get Wi-Fi information
CHANGE_WIFI_MULTICAST_STATE - For network device discovery
NEARBY_WIFI_DEVICES (Android 13+) - To discover nearby Wi-Fi devices. On Android 16+ this permission also gates local network access (sockets to local addresses, mDNS, SSDP), so scanning cannot work without it
ACCESS_FINE_LOCATION / ACCESS_COARSE_LOCATION - Optional. Used only to read Wi-Fi network details such as the SSID, and never for location tracking; scanning works without it

Building

Requires JDK 17 and the Android SDK (API 36).

git clone https://github.com/usamaiqb/network-scanner.git
cd network-scanner
./gradlew assembleDebug

The APK is written to app/build/outputs/apk/debug/. See CONTRIBUTING.md for the full development setup.

Translations

Language	Progress
English	████████████ 100% (source)
العربية	████████████ 99%
Deutsch	████████████ 100%
Español	████████████ 100%
فارسی	████████████ 100%
Italiano	████████████ 100%
Română	████████████ 100%
Русский	████████████ 100%
Türkçe	████████████ 100%
Українська	████████████ 100%
中文 (中国)	████████████ 100%

Translations are welcome! To add or improve one, edit app/src/main/res/values-<locale>/strings.xml, run bash scripts/translation-status.sh to update the language list and the table above, and open a pull request.

Known limitations

Since Android 10, apps can't read other devices' entries from the system ARP table, so MAC address and vendor only appear for your own device and sometimes the router. This affects every network scanner app. The MAC address access setting works around it through Shizuku or root.

Contributing

Contributions are welcome. Read CONTRIBUTING.md first, and use Issues or Discussions for bugs and questions.

License

GNU General Public License v3.0. See the Privacy Policy for how the app handles data.

How Shizuku is used

Can show device MAC addresses, vendors and hidden hosts via `ip -4 neigh show` through Shizuku.

This is an AI-assisted analysis of Shizuku-related usages in the app's public source code. It is best effort, so it may not catch every single usage.

How this app uses Shizuku

Shizuku is used to read the complete local network neighbor table that Android 10 and later normally hides from apps.

Reveal MAC addresses: Devices found during a scan are filled in with their hardware addresses taken from the privileged ip -4 neigh show output through Shizuku.
Identify vendors and types: Those hardware addresses are used to show the maker name and to improve the guessed device type for each host.
Find silent devices: Hosts that ignore ping but appear in the neighbor table are added to the results from the same privileged output, so firewalled machines still appear.

Android APIs or commands used

ip -4 neigh show

Notable details

Without Shizuku, scans still run with normal discovery, but MAC addresses and vendor names may stay empty on Android 10 and later.

Changelog

What's new for version 1.1.11

What's Changed

🚀 Features

feat(i18n): add German translation by @eruedin in https://github.com/usamaiqb/network-scanner/pull/91
feat(scan): read the ARP table through Shizuku or root by @martinellimarco in https://github.com/usamaiqb/network-scanner/pull/84
feat(settings): pick the MAC address source from a bottom sheet by @usamaiqb in https://github.com/usamaiqb/network-scanner/pull/97

🐛 Bug Fixes

fix(home): show Unknown when the network name cannot be read by @usamaiqb in https://github.com/usamaiqb/network-scanner/pull/92
fix(i18n): add missing German string for unknown network name by @usamaiqb in https://github.com/usamaiqb/network-scanner/pull/93
fix(scan): use privileged MACs for late-found hosts and the gateway by @martinellimarco in https://github.com/usamaiqb/network-scanner/pull/94
fix(i18n): add missing Italian and Spanish strings for the local network permission by @martinellimarco in https://github.com/usamaiqb/network-scanner/pull/96