AirTun

AirTun is a modern, ultra-lightweight, zero-config solution designed to share your Android phone's internet and active VPN tunnel with Windows 10/11 computers over Wi-Fi or Hotspot with near-zero latency.

Unlike traditional mobile hotspots that get restricted or throttled by carriers and add heavy ping jitter to games, AirTun pairs a high-performance native Kotlin SOCKS5 & UDP relay engine on Android with a sleek Neumorphic WinUI 3 desktop client for Windows.

✨ Key Features 📱 Android Server Engine Full TCP & UDP Relay: High-throughput forwarding for DNS queries and real-time gaming/voice traffic. Ultra-Low Memory Footprint: Consumes under 15 MB RAM powered by non-blocking Kotlin Coroutines. LAN Auto-Discovery (UDP Beacon): Instantly announces presence across the local network/hotspot on port 47880. RFC 1929 4-Digit Security PIN: Ephemeral cryptographic token pairing preventing unauthorized connections. Unique Physical Device Counter: Accurately tracks distinct connected computers rather than raw socket counts. Studio Neumorphic UI: Jetpack Compose dark studio aesthetics with real-time bandwidth metrics.