Harpy Network Monitor

A powerful network monitoring and management tool for Android.

Harpy is a network monitoring application that gives you complete visibility and control over devices on your local network. Discover connected devices, manage network access, and configure advanced network protocols—all from an intuitive Material 3 interface.

Note: This application requires root access to function properly.

Features Network Discovery Real-time device scanning using ARP protocol Detailed device information including IP address, MAC address, and manufacturer Gateway detection with visual indicators Custom device naming with persistent storage across app restarts Device pinning to keep important devices at the top IPv4/IPv6 filtering for better organization Real-time Interface Selection: Dynamic detection of active network interfaces (e.g., wlan0, ap0, eth0) for all scanning operations Interface Mismatch Protection: Visual warning banner with instant "Switch Interface" logic when the system network changes Smart Device Name Caching: Device names persist even before first network scan after app restart Network Control Block/unblock devices using multiple methods: ARP spoofing, Blackhole routing, or Traffic Control Per-Device Rate Limiting: Set custom bandwidth limits for specific devices instead of a full block Persistent blocking that survives app restarts Bulk operations to unblock all devices at once Ping testing to verify device connectivity Gateway blocking (nuclear option) to disconnect all devices Advanced Features DNS spoofing with auto-fill domain, smart IP selection, and upstream query forwarding DHCP spoofing with auto-detected gateway and interface Spoofing session management: Centralized control to pause, resume, and edit active DNS/DHCP sessions Performance monitoring with real-time CPU/memory charts and process management Network topology mapping Real-time logging with export functionality Root helper binary for secure privileged operations Dynamic network interface detection across all screens Modern UI Built entirely with Jetpack Compose and Material 3 Dark theme optimized for OLED displays Smooth animations and transitions Bottom navigation for easy feature access Responsive design that adapts to different screen sizes Stack-based navigation with scroll state preservation Smart form auto-fill in spoofing dialogs with dropdown selectors Enhanced Stability: Multi-layered MAC deduplication to prevent UI crashes on complex networks Full API 24/25 Support: Robust backward-compatible process management using custom ProcessUtils for Android 7.x devices