Objects of the HTML::Form class represents a single HTML <form> ... </form> instance.

An HTTP::Message object contains some headers and a content body.

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.

Uhttpmock is a project for mocking web service APIs which use HTTP or HTTPS. It provides a library, libuhttpmock, which implements recording and playback of HTTP request/response traces.

WASM3 is a fast WebAssembly interpreter.

Catalyst is a modern framework for making web applications. It is designed to make it easy to manage the various tasks you need to do to run an application on the web, either by doing them itself, or by letting you "plug in" existing Perl modules that do what you need.

The Net::HTTP class is a low-level HTTP client. An instance of the Net::HTTP class represents a connection to an HTTP server. The HTTP protocol is described in RFC 2616. The Net::HTTP class supports HTTP/1.0 and HTTP/1.1.

This module is a Catalyst view class for the Template Toolkit.

Py-ubjson is a Python module providing an Universal Binary JSON encoder/decoder based on the draft-12 specification for UBJSON.

Instances of the HTTP::Daemon class are HTTP/1.1 servers that listen on a socket for incoming requests. The HTTP::Daemon is a subclass of IO::Socket::INET, so you can perform socket operations directly on it too.

libdatachannel is a standalone implementation of WebRTC Data Channels, WebRTC Media Transport, and WebSockets in C++17 with C bindings for POSIX platforms. WebRTC is a W3C and IETF standard enabling real-time peer-to-peer data and media exchange between two devices.

Hitch is a performant TLS proxy based on libev. It terminates SSL/TLS connections and forwards the unencrypted traffic to a backend such as a web server. It is designed to handle many thousand connections on multicore machines.

This module attempts to make using HTML templates simple and natural. It extends standard HTML with a few new HTML-esque tags: <TMPL_VAR>, <TMPL_LOOP>, <TMPL_INCLUDE>, <TMPL_IF>, <TMPL_ELSE> and <TMPL_UNLESS>. The file written with HTML and these new tags is called a template. Using this module you fill in the values for the variables, loops and branches declared in the template. This allows you to separate design from the data.

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

Libwebsockets is a library that allows C programs to establish client and server WebSockets connections---a protocol layered above HTTP that allows for efficient socket-like bidirectional reliable communication channels.

The esbuild tool provides a unified bundler, transpiler and minifier. It packages up JavaScript and TypeScript code, along with JSON and other data, for distribution on the web.

The URI module implements the URI class. Objects of this class represent "Uniform Resource Identifier references" as specified in RFC 2396 and updated by RFC 2732.

RapidJSON is a fast JSON parser/generator for C++ with both SAX/DOM style API.

The WWW::RobotRules module parses /robots.txt files as specified in "A Standard for Robot Exclusion", at <http://www.robotstxt.org/wc/norobots.html>. Webmasters can use the /robots.txt file to forbid conforming robots from accessing parts of their web site.

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

This plugin links the two pieces required for session management in web applications together: the state, and the store.

The openZIM project proposes offline storage solutions for content coming from the Web. The zimlib is the standard implementation of the ZIM specification. It is a library which implements the read and write method for ZIM files.

Catalyst::Component::InstancePerContext returns a new instance of a component on each request.

LibWapcaplet provides a reference counted string internment system designed to store small strings and allow rapid comparison of them. It is developed as part of the Netsurf project.