JSlab vs Network Scanner
Side-by-side comparison of two open source alternatives
JSlab
The author was in need of a more capable calculator app than what's included with Android. After finding none that pleased him he made one himself. Javascript is turing complete, WebViews provide javascript and the eval() function. Thusly JSlab was created.
Network Scanner
Network Scanner is a fast, lightweight, and privacy-focused tool for discovering and analyzing devices on your local network. Key Features: • Fast network scanning to discover all devices on your WiFi network • Detailed device information including IP address, MAC address, and hostname • Port scanning to identify open ports and running services • Device type detection and categorization • Material Design 3 interface with modern, intuitive UI • Refresh for quick rescans • Customizable scan settings Privacy First: • No ads or tracking • No analytics or data collection • No external internet connection — all traffic stays on your local network • All scanning happens locally on your device • Minimal permissions requested • 100% open source (GPL-3.0) Perfect For: • Network administrators monitoring their home/office network • Tech enthusiasts exploring their network setup • Troubleshooting network connectivity issues • Discovering unauthorized devices on your network • Finding IP addresses of network devices (printers, cameras, smart home devices) Permissions Explained: Network Scanner only requests permissions essential for network scanning: • Network access - To communicate with devices on your network • WiFi state - To check if you're connected to WiFi • Location (not used for tracking) - Required by Android for WiFi scanning Network Scanner is completely ad-free, tracker-free, and respects your privacy. All code is open source and auditable.
| Feature | JSlab | Network Scanner |
|---|---|---|
| License | GPL-3.0-only | GPL-3.0-only |
| Install sources | F-DroidGitHub | F-DroidGitHub |
| Categories | ProductivityDev ToolsBrowser | ProductivityDev ToolsBrowser |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |