: The code is 100% transparent and available on GitHub , allowing anyone to verify its security.

: Individually allow or block internet access for any installed or system application.

NetGuard is a free and open-source Android firewall that provides comprehensive control over your apps' internet access without requiring root permission. It works by creating a local VPN to filter all outgoing traffic directly on your device, ensuring that no data is sent to external servers. Core Firewall Features

: Fully supports IPv4/IPv6 and both TCP and UDP protocols.

: Receive notifications for new applications and configure their firewall rules directly from the notification shade. Performance & Privacy

: There is no tracking, no analytics, and the app does not "call home" to its developers.

: Because it uses a local VPN, users should disable battery optimization for NetGuard to prevent the system from closing it in the background.

: Optionally allow connections only when the screen is on, or block them entirely when roaming.