The best free alternative to GlassWire is Portmaster, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to GlassWire and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to GlassWire are simplewall, TrafficMonitor, Fort Firewall and TinyWall.
NetSpeedMonitor is a lightweight Network Monitoring Toolbar for your Windows Taskbar designed to be used on computers that run Windows XP, Windows Server 2003, Windows Vista or Windows 7. With NetSpeedMonitor you can monitor the current speed (up- and downstream) of your Network...
Displays real-time network download and upload speeds in the macOS menu bar with detailed Wi-Fi and latency stats, customizable appearance, unit options, no data collection, fully open source, and a native interface for seamless local monitoring.
BitMeter OS keeps track of how much you use your internet/network connection, and allows you to view this information in a variety of ways.
BitMeter OS is just a logger.
This program just monitors my computers network usage. It was perfect for me since I don't need all the features in Glasswire
Free Firewall is a full-featured professional firewall that protects against the threats of the Internet. Control every program on your computer by permit or deny access to the Internet. Free firewall notifies you when applications want to access the Internet in the background...
Windows Firewall Notifier (WFN) extends the default Windows embedded firewall behavior, allowing to visualize and handle incoming or outgoing connections.
As soon as you’re connected to the Internet, your apps can send whatever they want to wherever they want, unnoticed by you, because all of this happens invisibly under the hood.
A fundamental re-design of user Data Privacy. Your multi-tool for online protection. So easy your grandma could use it. Costs less than a cup of coffee per year.
“Data Monitor" is a user-friendly, free and open source app for you to manage your data usage. “Data Monitor" helps you to accurately measure your daily data traffic, and analyze the data in a way easy to understand.
Live data rate chart. Network usage history (statistics). Quota counter (limit usage meter). Works with every network connection. Multi-language. Installer & portable. Lightweight. Freeware.
This personal firewall and intrusion detection application provides comprehensive online security. It constantly monitors your PC for intrusion and reports any findings, so you can take the appropriate action.
Enables per-application network monitoring with instant notifications, detailed logging, multiple predefined security zones, blocking of zero-day malware and telemetry, support for portable use, remote management, IPv6 networks, and flexible LAN connectivity settings.
Barikade is a Windows Service to close processes running outside allowed directories followed by network connections blocking to prevent the use of legit software to bypass Windows Firewall and download malware.
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Glasswire is a firewall and logging tool, Netspeedmonitor only monitors current connection speed