Linux kernel source tree

A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP…

Cross-platform asynchronous I/O

TCP port scanner, spews SYN packets asynchronously, scanning entire Internet in under 5 minutes.

Cross-platform, sophisticated frontend for the libretro API. Licensed GPLv3.

H2O - the optimized HTTP/1, HTTP/2, HTTP/3 server

Fast and Lightweight Logs, Metrics and Traces processor for Linux, BSD, OSX and Windows

http request/response parser for c

CommonMark parsing and rendering library and program in C