Network Monitoring Tools

The Dude
Free
A network monitor tool.
NetworkUsageView
Free
Extracts and displays the network usage information.
SoftPerfect NetWorx
Free Trial
A simple yet versatile tool that helps you monitor your Internet connection.
LiveTcpUdpWatch
Free
Displays live information about all TCP and UDP activity on your system.
NetworkMiner Free
Free
Captures and analyzes network traffic for forensic investigation and security analysis.
PRTG Network Monitor
Free Trial
Use PRTG Network Monitor for your LANs, VM, Servers, Websites, Appliances, and more.
NetLimiter
Free Trial
An ultimate internet/network control, security and statistical tool for Windows.
NetworkLatencyView
Free
View network latency for every new TCP connection.
AppNetworkCounter
Free
Counts and displays the number of TCP/UDP bytes and packets sent and received by every application on your system.
NetSpeedTray
Free
Display real-time network upload and download speeds in the system tray.
EasyNetMonitor
Free
A free tool for monitoring computers in your local network and any internet hosts.
LAN Speed Test (Lite)
Free
A free, simple but powerful tool for measuring the speed of your Local Area Network (LAN) wired & wireless, file transfers, hard drives, and USB Drives.
NetTraffic
Free
A tool for monitoring network traffic (bandwidth) on selected interfaces.
DNSLookupView
Free
Displays detailed information about DNS queries on Windows systems.
Network Meter
Free
Tool for network traffic measuring.
CurrPorts
Free
Monitoring Opened TCP/IP network ports / connections.
DNS Benchmark
Free
A unique, comprehensive, accurate & free utility to determine the exact performance of local and remote DNS nameservers.
ipMonitor Free Edition
Free
Essential IT monitoring for small environments.
Sniffnet
Free (Open Source)
Comfortably monitor your network traffic.
NetworkTrafficView
Free
A network monitoring tool that captures the packets pass through your network adapter, and displays general statistics about your network traffic.