Beautiful Soup - Python HTML/XML parser

•    Python

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Beautiful Soup is a Python HTML/XML parser designed for quick turnaround projects like screen-scraping. Beautiful Soup parses anything you give it, and does the tree traversal stuff for you. You can tell it "Find all the links", or "Find all the links of class externalLink", or "Find all the links whose urls match "foo.com", or "Find the table heading that's got bold text, then give me that text."

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TagSoup - HTML/XML parser for Haskell

•    Haskell

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TagSoup is a library for parsing HTML/XML. It supports the HTML 5 specification, and can be used to parse either well-formed XML, or unstructured and malformed HTML from the web. The library also provides useful functions to extract information from an HTML document, making it ideal for screen-scraping.

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System.Html

•    CSharp

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A html parser that turns badly formatted html into XPath query able xml. Similar to html tidy and html agility pack; I suppose you can call it "Just Another Html Parser". Written in c# and does not require anything that isn't found in the dot net framework.

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HtmlCleaner

•    Java

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HtmlCleaner is HTML parser written in Java. It transforms dirty HTML to well-formed XML following the same rules that the most web-browsers use.

Neko HTML Parser - simple HTML scanner

•    Java

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NekoHTML is a simple HTML scanner and tag balancer that enables application programmers to parse HTML documents and access the information using standard XML interfaces. The parser can scan HTML files and fix up many common mistakes that human (and computer) authors make in writing HTML documents. NekoHTML adds missing parent elements. Automatically closes elements with optional end tags and can handle mismatched inline element tags.

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Hpricot - HTML parser for Ruby

•    C

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Hpricot is a fast, flexible HTML parser. Hpricot can be handy for reading broken XML files, since many of the same techniques can be used. If a quote is missing, Hpricot tries to figure it out. If tags overlap, Hpricot works on sorting them out.

html-parser parser

posthtml - PostHTML is a tool to transform HTML/XML with JS plugins

•    Javascript

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PostHTML is a tool for transforming HTML/XML with JS plugins. PostHTML itself is very small. It includes only a HTML parser, a HTML node tree API and a node tree stringifier. All HTML transformations are made by plugins. And these plugins are just small plain JS functions, which receive a HTML node tree, transform it, and return a modified tree.

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parse5 - HTML parsing / serialization toolset for Node.js

•    Javascript

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parse5 provides nearly everything you may need when dealing with HTML. It's the fastest spec-compliant HTML parser for Node to date. It parses HTML the way the latest version of your browser does. It has proven itself reliable in such projects as jsdom, Angular2, Polymer and many more.

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JTidy - HTML parser and pretty printer in Java

•    Java

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JTidy is a Java port of HTML Tidy, a HTML syntax checker and pretty printer. Like its non-Java cousin, JTidy can be used as a tool for cleaning up malformed and faulty HTML. In addition, JTidy provides a DOM interface to the document that is being processed, which effectively makes you able to use JTidy as a DOM parser for real-world HTML.

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html-agility-pack - Html Agility Pack (HAP)

•    CSharp

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This is an agile HTML parser that builds a read/write DOM and supports plain XPATH or XSLT (you actually don't HAVE to understand XPATH nor XSLT to use it, don't worry...). It is a .NET code library that allows you to parse "out of the web" HTML files. The parser is very tolerant with "real world" malformed HTML. The object model is very similar to what proposes System.Xml, but for HTML documents (or streams).Have a question? Ask questions and find answers from over 2500 questions.

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HTML Parser for PHP 4

•    PHP

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Object oriented PHP based HTML parser. The HtmlParser class allows you to interate through HTML nodes and get their attributes, names and values. It also comes with an example class for converting HTML to formatted ASCII text.

TagSoup - SAX-compliant parser in Java

•    Java

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TagSoup, a SAX-compliant parser written in Java that, instead of parsing well-formed or valid XML, parses HTML as it is found in the wild: poor, nasty and brutish, though quite often far from short. TagSoup is designed for people who have to process this stuff using some semblance of a rational application design. TagSoup also includes a command-line processor that reads HTML files and can generate either clean HTML or well-formed XML that is a close approximation to XHTML.

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Nokogiri - HTML, XML, SAX, and Reader parser with XPath and CSS selector support

•    Ruby

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Nokogiri (?) is an HTML, XML, SAX, DOM parser. Among Nokogiri's many features is the ability to search documents via XPath or CSS3 selectors, XML/HTML builder, XSLT transformer. Nokogiri parses and searches XML/HTML using native libraries (either C or Java, depending on your Ruby), which means it's fast and standards-compliant.

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goquery - A little like that j-thing, only in Go.

•    Go

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goquery brings a syntax and a set of features similar to jQuery to the Go language. It is based on Go's net/html package and the CSS Selector library cascadia. Since the net/html parser returns nodes, and not a full-featured DOM tree, jQuery's stateful manipulation functions (like height(), css(), detach()) have been left off.Also, because the net/html parser requires UTF-8 encoding, so does goquery: it is the caller's responsibility to ensure that the source document provides UTF-8 encoded HTML. See the wiki for various options to do this.

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lol-html - Low output latency streaming HTML parser/rewriter with CSS selector-based API

•    HTML

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Low Output Latency streaming HTML rewriter/parser with CSS-selector based API. It is designed to modify HTML on the fly with minimal buffering. It can quickly handle very large documents, and operate in environments with limited memory resources. More details can be found in the blog post.

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dante - A sane rich text parsing and styling library.

•    Java

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Dante is a text parser to easily generate a Spannable from a raw input, right now it supports only HTML but the idea is to be able to support multiple input types (e.g., MarkDown). Originally I authored Dante in Pause, the project is now dead and I decided to open source it.

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jspoon - Annotation based HTML to Java parser + Retrofit converter

•    Java

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jspoon is a Java library that provides parsing HTML into Java objects basing on CSS selectors. It uses jsoup underneath as a HTML parser. It looks for the first occurrence in HTML and sets its value to a field.

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Html Agility Pack

•    

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This is an HTML parser that builds a read/write DOM from “real world” HTML files. It supports XPATH or XSLT and is tolerant with "real world" malformed HTML.

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php-simple-html-dom-parser - PHP Simple HTML DOM Parser adaptation for Composer and PSR-0

•    HTML

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A HTML DOM parser written in PHP5+ let you manipulate HTML in a very easy way! Require PHP 5+. Supports invalid HTML. Find tags on an HTML page with selectors just like jQuery. Extract contents from HTML in a single line.

Simple Text Processing Library

•    C++

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A simple text process library, aims to assist parsing all kinds of text including plain text, XML, HTML, etc., which means it can be used as a simple XML parser or a HTML parser.