ab – slow in single-threaded can be made more efficient by taskset, written in C ali – Generate HTTP load and plot the results in real-time, written in Go (golang) apib – most of the features of ApacheBench (ab), also designed as a more modern replacement, written in C autocannon – fast HTTP/1.1 benchmarking tool written in Node.js baloo – Expressive end-to-end HTTP API testing made easy, written