Tsung - Tsung is an open-source multi-protocol distributed load testing tool.
Simple Analytics - The privacy-first Google Analytics alternative located in Europe.
gatling - A high performance web server. Small! (125k static Linux-x86 binary with HTTP, FTP and SMB support).
Apache JMeter - Apache JMeter™.
wrk - HTTP benchmarking tool capable of generating significant load on a multi-core CPU.
Qubit - Qubit is a web personalization platform founded by former Google workers, using innovative technology to collect, store, process, and output data to optimize consumers' experiences on the web. Read more about Qubit.