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…

Command-line JSON processor

TLS/SSL and crypto library

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

A massively spiffy yet delicately unobtrusive compression library.

a command line tool for URL parsing and manipulation.

The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3!

A C library for asynchronous DNS requests

LiteSpeed QUIC and HTTP/3 Library

the SSH library

ngtcp2 project is an effort to implement IETF QUIC protocol

HTTP/3 library written in C

A modular QUIC stack designed primarily for H2O

Minimal implementation of the QUIC protocol

wolfMQTT is a small, fast, portable MQTT client implementation, including support for TLS 1.3.

Read-only mirror of rockbox' main repository

TLS/SSL and crypto library with QUIC APIs

wolfSSH is a small, fast, portable SSH implementation, including support for SCP and SFTP.

Let's Encrypt (ACME) in Apache httpd

HTTP/2 module for Apache httpd

Frexx C preprocessor

a portable C library for SPDY transport (DEAD project!)

A New, Evolutive API and Transport-Layer Architecture for the Internet

A Cocoa wrapper for libssh2

Tools to measure libcurl performance delta between versions

Materials related to the extensive video tutorial "mastering libcurl"

A Swift wrapper around libcurl that works with Linux

FrexxEd is a flexible Amiga text editor with scripting support, ARexx, multiple views, built in filesystem handler for open buffers and more

cut out a small (binary) piece of a (binary) file

A C library for asynchronous DNS requests