Wise System Monitor!

Rainmeter is a desktop customization platform. Through Rainmeter, you can enhance your Windows computer at home or work with skins: handy, compact applets which float freely on your desktop, much like Windows Sidebar gagdgets, or dashboard widgets for the Mac. Rainmeter skins provide you with useful information at a glance. Its easy to keep an eye on your system resources, like memory and battery power, or your online data streams, including email, RSS feeds, and weather forecasts. Many skins are even functional: they can record your notes and to-do lists, launch your favorite applications, and send your tweets to Twitter - all in a clean, unobtrusive interface that you can rearrange and customize to your liking. »

GlassWire is a free network security monitoring tool and analyzer that visualizes your network activity on an easy to use graph, alerts you of possible threats, manages your firewall, and more.

NetWorx is a simple and powerful tool that helps you objectively evaluate your bandwidth situation. It can ensure that you do not exceed the bandwidth limits specified by your ISP, help identify sources of network problems, and help track suspicious network activity. The software features highly customizable visual and sound alerts that can alert you of a variety of events, such as bandwidth quotas, network downtime, and suspicious network activity. The traffic is represented on graphs as well as logged to a file, so you can view and save statistics about your daily, weekly and monthly bandwidth usage at any time. NetWorx became commercial with version 6.0.0 released January 1st, 2017; the last free version is 5.5.5. »

DU Meter is a network bandwidth monitor for your computer. It shows real-time graphs and can create reports and alerts based on your downloads and uploads. It enables you to use your internet connection more efficiently by providing an accurate visualization of the data that flows through your computer's network connection.

NetGraph is a free to use network bandwidth monitor. It shows real-time information about the state of network traffic in a visual display format selected by the user. NetGraph can monitor the data flows of wired, Wi-Fi and mobile broadband connections, as well as that of the local network and the internet.

Simple to use bandwidth monitoring software to track Internet bandwidth usage. It remains in tray and displays the bandwidth usage in current session, day and month. This will be helpful for those with limited bandwidth broadband/adsl connection.