ShizuWall – No-Root, No-VPN Android Firewall Take full control of your privacy! ShizuWall is a lightweight, privacy-first firewall that lets you block internet access for any app without rooting your device or using a battery-draining VPN service. Powered by Shizuku (or built-in local ADB), it works seamlessly on Android 11 and above — giving you true system-level control with almost zero overhead. Why Choose ShizuWall? No root required — Works on stock, non-rooted devices No VPN tunnel — No speed loss, no extra battery drain, no connection drops Real per-app blocking — Uses Android's native connectivity framework (Chain-3 style) to completely cut off network access — no packet capturing or redirection Privacy-first & fully local — Zero data leaves your device, no analytics, no tracking, no telemetry Super lightweight — Clean Material You design, minimal resource usage, fast & responsive Advanced modes (v4.2+) Whitelist mode: Only allowed apps can connect Foreground-only mode: Block background data while allowing foreground use Automation ready — Easily integrate with Tasker, MacroDroid or ADB broadcasts for auto-rules on boot/Wi-Fi change Open source — Full code on GitHub under GPLv3 — transparent and community-driven Perfect For: Blocking ads, trackers & background data hogs (Facebook, TikTok, Google apps, etc.) Saving mobile data & battery life by restricting unnecessary apps Creating a focused / distraction-free mode (block social media & games) Enhancing privacy & security without compromises Parental control — isolate apps for kids Stopping sneaky background uploads/downloads Super Easy Setup (Takes ~1 Minute) Install Shizuku from Play Store (or use our built-in local ADB mode) Start Shizuku via wireless debugging (no PC needed) Open ShizuWall → Grant permission → Tap to block/allow any app! Quick tip: Rules reset on reboot due to Android security — enable Shizuku auto-start or use Tasker for one-tap restoration.