Best NTttcp Alternatives ranked by AI · updated Aug 2026

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NTttcp is a Windows command-line network performance and throughput testing tool designed for high-load and server-oriented scenarios. It is used by Windows administrators and engineers to benchmark network paths and tune system performance.

Developer: Microsoft Price: Free 🎯 github.com/microsoft/ntttcp

💻 Windows network diagnostics network testing benchmarking throughput testing

Top 6 NTttcp alternatives

LAN Speed Test

Totusoft

LAN Speed Test measures file-transfer performance across local networks and storage locations using a graphical interface. It is intended for Windows and...

Pros

More user-friendly than NetStress for file-transfer checks
Tests practical read and write performance to network shares
Supports Windows and macOS

Cons

File-transfer results are affected by disk and share performance
Less precise for isolated network-layer testing than iPerf3
The free version has fewer features than the paid edition

Free Lite; paid from $10

Alternatives to LAN Speed Test → Visit site

TamoSoft Throughput Test

TamoSoft

TamoSoft Throughput Test is a graphical network performance utility that measures TCP and UDP throughput, packet loss, and related connection statistics. It...

Pros

Provides a graphical alternative to command-line tools
Measures TCP and UDP traffic with packet-loss information
Useful for testing wireless and VPN connections

Cons

Less widely used and documented than iPerf3
Platform support is narrower than iPerf3
Interface and workflow are less modern than newer tools

Free

Alternatives to TamoSoft Throughpu... → Visit site

Ostinato

Ostinato is an open-source network packet crafter/traffic generator with a friendly GUI. It aims to be "Wireshark in Reverse" and become complementary...

Free

Alternatives to Ostinato → Visit site

NetIO-GUI

NetIO-GUI contributors

NetIO-GUI is a graphical front end for the NetIO network throughput benchmark, aimed primarily at Windows users testing LAN and network performance....

Pros

Provides a simpler Windows interface than command-line NetIO
Useful for basic client-server LAN throughput tests
Lightweight and free to use

Cons

Fewer protocol and measurement options than iPerf3
Less actively maintained than modern network benchmark tools
Primarily suited to Windows rather than cross-platform workflows

Free

Alternatives to NetIO-GUI → Visit site

NetStress

Nuts About Nets

NetStress is a Windows network benchmarking utility for measuring TCP and UDP throughput between two systems. It is aimed at network administrators...

Pros

Simple graphical workflow compared with command-line tools such as iPerf3
Tests both TCP and UDP throughput
Useful for quick Windows-to-Windows LAN and Wi-Fi checks

Cons

Windows-only, unlike iPerf3 and nuttcp
Less automation and scripting support than command-line benchmarks
Smaller ecosystem and community than iPerf3

Free

Alternatives to NetStress → Visit site

iperf3

ESnet

iperf3 is an open-source command-line tool for measuring network throughput between client and server endpoints. It is widely used by network administrators...

Pros

More widely deployed and easier to find on existing systems than Flent
Provides detailed TCP and UDP throughput measurements
Supports parallel streams, reverse tests, and JSON output

Cons

Provides less built-in visualization and test orchestration than Flent
Requires endpoints under your control for most useful tests
Less focused on long-term latency and bufferbloat analysis

Free, open source

Alternatives to iperf3 → Visit site

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