Discover and analyze devices on your local network with no ads, no tracking, and no internet required.
- π Ping Sweep - Parallel ICMP ping sweep with TCP fallback for devices that block ICMP (e.g. Windows with firewall)
- π ARP Cache - Reads the ARP table to pick up devices without sending any traffic
- π‘ mDNS / Bonjour - Discovers services like AirPlay, Chromecast, printers, SSH, SMB, HomeKit, and more
- πΊ SSDP / UPnP - Finds UPnP devices and fetches their full description (friendly name, manufacturer, model number)
- πͺ NetBIOS - Resolves hostnames and workgroups for Windows and Samba devices
- π Port Heuristics - Identifies Cast-enabled TVs and other devices via targeted port probes when other methods come up empty
- π·οΈ MAC Address & Vendor - Shows MAC address with OUI vendor lookup, including detection of randomized (private) MAC addresses
- π₯οΈ OS Fingerprinting - Detects Windows, Linux, macOS, router firmware, and printer OS from open ports and banners
- π± Device Type Icons - Automatically identifies smartphones, laptops, desktops, TVs, routers, printers, NAS, and more
- π Deep Port Scan - Scans common ports, grabs service banners, and extracts software versions
- 𧩠Full Port Scan - Optional sweep of all 65,535 ports via a fast worker pool
- βοΈ Configurable Ports - Customize which ports are probed during scans
- π·οΈ Custom Devices - Rename devices and assign your own icons for easy identification
- πΆ Interface Selection - Choose which network interface to scan (Wi-Fi, Ethernet, VPN)
- π Multilingual - Available in multiple languages (see Translations)
- π¨ Material Design 3 - Modern interface following latest design guidelines
- π Privacy First - No ads, no tracking, no analytics
- π Lightweight - Minimal permissions, efficient battery usage
- π‘ Offline - Works completely offline, no internet required
Download the latest APK from the Releases page.
- Android 8.0 (Oreo) or higher
- WiFi connection to scan local network
Network Scanner requests only essential permissions:
- INTERNET - For network communication
- ACCESS_NETWORK_STATE - To check network connectivity
- ACCESS_WIFI_STATE - To get WiFi information
- CHANGE_WIFI_MULTICAST_STATE - For network device discovery
- NEARBY_WIFI_DEVICES (Android 13+) - To discover nearby WiFi devices
- ACCESS_FINE_LOCATION / ACCESS_COARSE_LOCATION - Required by Android for WiFi scanning (not used for location tracking)
- Android Studio Hedgehog (2023.1.1) or later
- JDK 17
- Android SDK with API level 35
- Clone the repository:
git clone https://github.com/usamaiqb/network-scanner.git
cd network-scanner- Open in Android Studio or build from command line:
./gradlew assembleRelease- The APK will be in
app/build/outputs/apk/release/
- Open the app and grant necessary permissions
- Tap the scan button to discover devices
- Tap any device to view detailed information
- Use the deep scan option for port scanning, or run a full port scan for all 65,535 ports
- Rename devices or assign custom icons to keep track of your network
| Language | Progress |
|---|---|
| English | ββββββββββββ 100% (source) |
| Ψ§ΩΨΉΨ±Ψ¨ΩΨ© | ββββββββββββ 100% |
| EspaΓ±ol | ββββββββββββ 100% |
| Π ΡΡΡΠΊΠΈΠΉ | ββββββββββββ 92% |
| Π£ΠΊΡΠ°ΡΠ½ΡΡΠΊΠ° | ββββββββββββ 92% |
Contributions to translations are welcome!
Contributions are welcome! Please read CONTRIBUTING.md for guidelines.
This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details.
Network Scanner:
- β Does NOT collect any personal data
- β Does NOT require internet connection
- β Does NOT contain ads or tracking
- β Does NOT share data with third parties
- β All scanning happens locally on your device
For full details, see the Privacy Policy.
- Issues: GitHub Issues
- Discussions: GitHub Discussions
Built with:
- Kotlin - Modern programming language for Android
- AndroidX - Android Jetpack libraries
- Material Design 3 - Modern design system
- Kotlin Coroutines - Asynchronous programming
See CHANGELOG.md for version history and changes.
Made with β€οΈ for the open source community