• Parses form data, correcting for defective and/or inconsistent browsers • Transparently accepts both GET and POST form data • Accepts uploaded files as well as regular form fields • Provides functions to set and retrieve "cookies" (browser-side persistent information) • Handles line breaks in form fields in a consistent manner • Provides string, integer, floating-point, and single- and multiple-choice functions to retrieve form data • Provides bounds checking for numeric fields • Loads CGI environment variables into C strings which are always non-null • Provides a way to capture CGI situations for replay in a debugging environment, including file uploads and cookies

◾C library: fast and small ◾API is simple, expressive and fully reentrant ◾Implementation is HTTP 1.1 compliant ◾HTTP server can listen on multiple ports ◾Four different threading models (select, poll, pthread, thread pool) ◾Supported platforms include GNU/Linux, FreeBSD, OpenBSD, NetBSD, Android, OS X, W32, Symbian and z/OS ◾Support for IPv6 ◾Support for SHOUTcast ◾Support for incremental processing of POST data (optional) ◾Support for basic and digest authentication (optional) ◾Support for SSL3 and TLS (requires libgcrypt and libgnutls, optional) ◾Binary is only about 32k (without TLS/SSL support and other optional features)