FoxyProxy - FoxyProxy is a set of proxy and proxy switcher to reach the content of international market and easily switch between multiple proxies and proxy servers.
iperf - A TCP, UDP, and SCTP network bandwidth measurement tool
Proxifier - Proxifier extends the advantages of a proxy server to network applications that don't natively support it.
JPerf - This project gives a better UI and new functionalities to the initial JPerf 1.
Proxy-Switcher - Anonymous Browsing using Proxy Switcher automatically switching among multiple available proxy...
NetStress - NetStress is a user-friendly benchmarking tool that is mostly used by networking professionals to measure the network performance of both wired and wireless connections.