NetValve

Root-free Android Bandwidth Controller, Per-App Internet Speed Limiter, Traffic Shaper and Firewall using Android VpnService.

Shape, block, schedule and monitor network traffic of individual apps using Android's VpnService. No root. No remote server. No trackers.

🎯 What is NetValve? NetValve is an open-source Android bandwidth controller and per-app internet speed limiter built with Kotlin. It allows you to limit upload and download speed, shape traffic, block applications, schedule rules, and monitor network usage without root using Android VpnService. Unlike traditional firewalls that only block connections, NetValve focuses on traffic shaping — giving you precise control over:

📊 Per-app bandwidth limits (download/upload) 🚫 App blocking (cut all network access) ⏰ Time-based schedules (e.g., block after midnight) 📱 Background-only rules (throttle when app is not in foreground) 📈 Live traffic statistics (throughput, connections, DNS) 🔋 Condition-based policies (Wi-Fi/mobile/roaming/charging/battery/screen) Everything runs on-device via Android's VpnService API. Traffic is terminated by a userspace network stack, shaped in Kotlin, and forwarded directly to the internet from protected sockets. NetValve is not a remote VPN — your data never leaves your phone through a third party.