NetWorker is a lightweight and easy-to-use tool that shows either the current download and upload speed or the session traffic of your network adapter.
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BitMeter Alternatives
BitMeter is described as '2 is a bandwidth meter, it allows you to visually monitor your internet connection by displaying a scrolling graph that shows your upload and download speed over time' and is an app in the network & admin category. There are more than 25 alternatives to BitMeter for a variety of platforms, including Windows, Mac, Linux, Android and Android Tablet apps. The best BitMeter alternative is TrafficMonitor, which is both free and Open Source. Other great apps like BitMeter are GlassWire, Sniffnet, NetWorx and NetSpeedTray.