The Apache HTTP Server Project is a collaborative software development effort aimed at creating a robust, commercial-grade, featureful, and freely-available source code implementation of an HTTP (Web) server. The project is jointly managed by a group of volunteers located around the world, using the Internet and the Web to communicate, plan, and develop the server and its related documentation.

Siege is a multi-threaded HTTP/FTP load tester and benchmarking utility. It can stress test a single URL with a user defined number of simulated users, or it can read many URLs into memory and stress them simultaneously. The program reports the total number of hits recorded, bytes transferred, response time, concurrency, and return status.

The Kiwix tools are a collection of Kiwix-related command line tools:

• kiwix-manage: Manage XML based library of ZIM files

• kiwix-read: Read ZIM file content

• kiwix-search: Fulltext search in ZIM files

• kiwix-serve: HTTP daemon serving ZIM files

WASM3 is a fast WebAssembly interpreter.

The File::Listing module exports a single function called parse_dir(), which can be used to parse directory listings.

Leafnode is a caching Usenet news proxy that enables online newsreaders to read news off-line and aggregates news from various NNTP servers into one.

CGI::FormBuilder provides an easy way to generate and process CGI form-based applications.

The Test::WWW::Mechanize::Catalyst module meshes the Test::WWW:Mechanize module and the Catalyst web application framework to allow testing of Catalyst applications without needing to start up a web server.

HTTP::Parser::XS is a fast, primitive HTTP request/response parser.

Plack::Middleware::Deflater is a middleware to encode your response body in gzip or deflate, based on "Accept-Encoding" HTTP request header. It would save the bandwidth a little bit but should increase the Plack server load, so ideally you should handle this on the frontend reverse proxy servers.

IO::Socket::SSL makes using SSL/TLS much easier by wrapping the necessary functionality into the familiar IO::Socket interface and providing secure defaults whenever possible. This way existing applications can be made SSL-aware without much effort, at least if you do blocking I/O and don't use select or poll.

Jsoup is a Java library for working with real-world HTML. It provides a very convenient API for extracting and manipulating data, using the best of DOM, CSS, and jQuery-like methods.

HTML::Lint is a pure-Perl HTML parser and checker for syntactic legitmacy.

LibDOM is an implementation of the W3C DOM, written in C. It is developed as part of the NetSurf project.

This package provides a backend implementation for the WPE WebKit engine that uses Wayland for graphics output.

LibWPE is general-purpose library specifically developed for the WPE-flavored port of WebKit.

Cog is a small single "window" launcher for the WebKit WPE port. It is small, provides no user interface of its own, and is suitable to be used as a web application container. The "window" may be fullscreen or have UI elements depending on the WPE backend being used.

WPE WebKit allows embedders to create simple and performant systems based on Web platform technologies. It is designed with hardware acceleration in mind, leveraging common 3D graphics APIs for best performance.

WebKitGTK+ is a full-featured port of the WebKit rendering engine, suitable for projects requiring any kind of web integration, from hybrid HTML/CSS applications to full-fledged web browsers. WebKitGTK+ video playing capabilities can be extended through the use of GStreamer plugins (not propagated by default) such as gst-plugins-good and gst-plugins-bad.

WebKitGTK+ is a full-featured port of the WebKit rendering engine, suitable for projects requiring any kind of web integration, from hybrid HTML/CSS applications to full-fledged web browsers. WebKitGTK+ video playing capabilities can be extended through the use of GStreamer plugins (not propagated by default) such as gst-plugins-good and gst-plugins-bad.

WebKitGTK+ is a full-featured port of the WebKit rendering engine, suitable for projects requiring any kind of web integration, from hybrid HTML/CSS applications to full-fledged web browsers. WebKitGTK+ video playing capabilities can be extended through the use of GStreamer plugins (not propagated by default) such as gst-plugins-good and gst-plugins-bad.

GNU Wget is a non-interactive tool for fetching files using the HTTP, HTTPS and FTP protocols. It can resume interrupted downloads, use file name wild cards, supports proxies and cookies, and it can convert absolute links in downloaded documents to relative links.

wgetpaste is an extremely simple command-line interface to various online pastebin services.

GNU Wget2 is the successor of GNU Wget, a file and recursive website downloader. Designed and written from scratch it wraps around libwget, that provides the basic functions needed by a web client.