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README.md
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# NetGuard
*NetGuard* provides a simple way to block access to the internet - no root required.
Applications can individually be allowed or denied access to your Wi-Fi and/or mobile connection.
*NetGuard* provides simple and advanced ways to block access to the internet - no root required.
Applications and addresses can individually be allowed or denied access to your Wi-Fi and/or mobile connection.
Blocking access to the internet can help:
@ -13,31 +13,33 @@ NetGuard is the first free and open source no-root firewall for Android.
Features:
* No root required
* Simple to use
* Open source
* No extra battery usage
* No bandwidth reduction
* No root required
* 100% open source
* No calling home
* No tracking or analytics
* No ads
* No internet permission required
* No advertisements
* Android 4.0 and later supported
* IPv4/IPv6 TCP/UDP supported
* Tethering supported
* Multiple device users supported
* Optionally allow when screen on
* Optionally block when roaming
* Optionally block system applications
* Graphical network speed display
* Material design
* Optionally forward ports, also to external addresses
* Optionally notify when an application accesses the internet
* Optionally record network usage per application per address
* Material design theme with light and dark theme
PRO features:
* Log all outgoing traffic; search and filter access attempts; export PCAP files to analyze traffic
* Allow/block individual addresses per application
* New application notifications; configure NetGuard directly from the notification
* Display network speed graph in a status bar notification
* Select from five additional themes in both light and dark version
There is no other no-root firewall offering all these features.
Most other firewall solutions will use extra battery and reduce the overall network speed.
Most of these features are the result of sending selected traffic to a sinkhole, instead of filtering all internet traffic.
This means that advanced features, like address based filtering (needed for ad blocking), traffic logging, and on-demand configuration, are not possible.
Routing selected traffic into a sinkhole relies on an API introduced in Android 5.0 (Lollipop),
therefore older Android versions unfortunately cannot be supported.
Since NetGuard has no internet permission, you know your internet traffic is not being sent anywhere.
Requirements:
@ -56,10 +58,10 @@ Usage:
* Enable the firewall using the switch in the action bar
* Allow/deny Wi-Fi/mobile internet access using the icons along the right side of the application list
You can use the settings menu to change from black list to white list mode.
You can use the settings menu to change from blacklist mode (allow all in *Settings* but block unwanted applications in list) to whitelist mode (block all in *Settings* but allow favorite applications in list).
* Orange = denied internet access
* Green = allowed internet access
* Red/orange/yellow/amber = internet access denied
* Teal/blue/purple/grey = internet access allowd
<img src="https://raw.githubusercontent.com/M66B/NetGuard/master/screenshots/01-main.png" width="320" height="569" />
<img src="https://raw.githubusercontent.com/M66B/NetGuard/master/screenshots/02-main-details.png" width="320" height="569" />