nuttcp is described as 'Network performance measurement tool intended for use by network and system managers. Its most basic usage is to determine the raw TCP (or UDP) network layer throughput by transferring memory buffers from a source system across an interconnecting network to a' and is a internet speed test app in the network & admin category. There are nine alternatives to nuttcp for a variety of platforms, including Windows, Linux, Mac, FreeBSD and Docker apps. The best nuttcp alternative is SmokePing, which is both free and Open Source. Other great apps like nuttcp are iPerf3, PPerf, netperf and Flent.