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The original was posted on /r/opensource by /u/Lazy-Grocery-3410 on 2026-03-03 21:35:49+00:00.
Hi everyone! A couple of months ago, I came across some adb commands that could block internet access for individual apps using Android’s ConnectivityManager and it completely blew my mind. I no longer needed a VPN-based firewall!
I immediately started coding and made ShizuWall. Privacy focused firewall that works with the help of shizuku.
Recently I released v4.3, which has evolved significantly from the initial v1.0. It began as a simple GUI wrapper for those commands, but now it’s a fully-featured, polished firewall app. The app is completely open-source and will soon be available on F-Droid. While I offer a paid version on the Play Store to support the ongoing development.
I want to make this app more popular because it’s truly one of a kind. I really want it to reach more people. It features whitelist and foreground modes too, plus I’ve even built an integrated daemon that lets it work without needing Shizuku at all in some setups.
A review, star, contribution, issue or any feedback mean a lot to me!
Thank you!
PlayStore: play.google.com/store/apps/details?id=com.arslan.…
Source code: github.com/AhmetCanArslan/ShizuWall