aria2 is a lightweight multi-protocol & multi-source download utility
Async HTTP/1.1+2 client for PHP based on Amp
A Complete Fast Android Networking Library that also supports HTTP/2
Lua HTTP client cosocket driver for OpenResty / ngx_lua
LaravelS is an out-of-the-box adapter between Laravel/Lumen and Swoole
Clojure HTTP server/client library with WebSocket support
A high-performance HTTP benchmarking tool
Lightweight HTTP Client for embedded devices