Top Alternatives to GlassWire

NetWorx is a powerful, yet easy to use tool.

Little Snitch is a host-based application firewall for Mac OS X. It can be used to monitor applications, preventing or permitting them to connect to attached networks through advanced rules.

Simplewall is a tool to configure the Windows Filtering Platform (WFP) which can configure network activity.

NetSpeedMonitor is a small Network Monitoring Toolbar for your Windows Taskbar which is designed specifically for Windows.

ZoneAlarm Free Firewall is a free Firewall software.

TinyWall is a free, feature-rich, and lightweight firewall for Windows, known for its unique no-popup approach.

DU Meter is a network bandwidth monitor for your computer.

BitMeter OS is a free, open-source, bandwidth monitor that works on Windows, Linux and Mac OSX.

NetMeter monitors network traffic through all network connections on the computer it's installed on, and displays real-time graphical and numerical downloading and uploading speeds.

Windows Firewall Notifier is embedded Windows firewall and offers real time connections monitoring, connections map, bandwidth usage monitoring.

BitMeter is a bandwidth meter - it allows you to visually monitor your internet connection by displaying a scrolling graph that shows your upload and download.