IO::HTML provides an easy way to open a file containing HTML while automatically determining its encoding. It uses the HTML5 encoding sniffing algorithm specified in section 8.2.2.1 of the draft standard.

The Jetty Web Server provides an HTTP server and Servlet container capable of serving static and dynamic content either from a standalone or embedded instantiation. This package provides utility classes.

Libsvgtiny takes some SVG as input and returns a list of paths and texts which can be rendered easily, as defined in http://www.w3.org/TR/SVGMobile/. It is developed as part of the NetSurf project.

The Jetty Web Server provides an HTTP server and Servlet container capable of serving static and dynamic content either from a standalone or embedded instantiation. This package provides the core jetty security infrastructure

Yder is a logging library written in C. It can log messages to the console, a file, syslog, journald, or a callback function.

Fcgiwrap is a simple server for running CGI applications over FastCGI. It hopes to provide clean CGI support to Nginx (and other web servers that may need it).

The purpose of this module is to provide a method for downloading data into many supportable formats. For example, downloading a table based report in a variety of formats (CSV, HTML, etc.).

LinkChecker is a website validator. It checks for broken links in websites. It is recursive and multithreaded providing output in colored or normal text, HTML, SQL, CSV, XML or as a sitemap graph. It supports checking HTTP/1.1, HTTPS, FTP, mailto, news, nntp, telnet and local file links.

Signpost is the easy and intuitive solution for signing HTTP messages on the Java platform in conformance with the OAuth Core 1.0a standard. Signpost follows a modular and flexible design, allowing you to combine it with different HTTP messaging layers.

Ablorb takes an XML file and resolves relative links, replacing them with data URIs.

darkhttpd is a simple static web server. It is standalone and does not need inetd or ucspi-tcp. It does not need any config files---you only have to specify the www root.

Plack is a set of tools for using the PSGI stack. It contains middleware components, a reference server, and utilities for Web application frameworks. Plack is like Ruby's Rack or Python's Paste for WSGI.

WebSocket++ is a C++ library that can be used to implement WebSocket functionality. The goals of the project are to provide a WebSocket implementation that is simple, portable, flexible, lightweight, low level, and high performance.

Qhttp is a light-weight and asynchronous HTTP library (both server & client) in Qt5 and C++14.

The Kiwix library provides the Kiwix software suite core. It contains the code shared by all Kiwix ports.

Gemget is a command line downloader for the Gemini protocol. It works well with streams and can print headers for debugging as well.

libjwt is a JWT library for C.

This module provides a convenient way to set up a CGI environment from an HTTP::Request.

rss-bridge generates Atom feeds for social networking websites lacking feeds. Supported websites include Facebook, Twitter, Instagram and YouTube.

serf is a C-based HTTP client library built upon the Apache Portable Runtime (APR) library. It multiplexes connections, running the read/write communication asynchronously. Memory copies and transformations are kept to a minimum to provide high performance operation.

This middleware allows for POST requests that pretend to be something else: by adding either a header named X-HTTP-Method-Override to the request, or a query parameter named x-tunneled-method to the URI, the client can say what method it actually meant.

Net::Server is an extensible, generic Perl server engine. It attempts to be a generic server as in Net::Daemon and NetServer::Generic. It includes with it the ability to run as an inetd process (Net::Server::INET), a single connection server (Net::Server or Net::Server::Single), a forking server (Net::Server::Fork), a preforking server which maintains a constant number of preforked children (Net::Server::PreForkSimple), or as a managed preforking server which maintains the number of children based on server load (Net::Server::PreFork). In all but the inetd type, the server provides the ability to connect to one or to multiple server ports.

Objects of the HTML::Parser class will recognize markup and separate it from plain text (alias data content) in HTML documents. As different kinds of markup and text are recognized, the corresponding event handlers are invoked.

Castor is a graphical client for plain-text protocols written in Rust with GTK. It currently supports the Gemini, Gopher and Finger protocols.