Nokogiri (鋸) makes it easy and painless to work with XML and HTML from Ruby. It provides a sensible, easy-to-understand API for reading, writing, modifying, and querying documents. It is fast and standards-compliant by relying on native parsers like libxml2, libgumbo, or xerces.

Xsv is a fast, lightweight parser for Office Open XML spreadsheet files (commonly known as Excel or .xlsx files). It strives to be minimal in the sense that it provides nothing a CSV reader wouldn't, meaning it only deals with minimal formatting and cannot create or modify documents.

Fast Ruby XML to Hash parser and Hash to XML builder, built on top of the Ox gem (a native C extension)

A fast XML parser and object serializer that uses only standard C lib. Optimized XML (Ox), as the name implies was written to provide speed optimized XML handling. It was designed to be an alternative to Nokogiri and other Ruby XML parsers for generic XML parsing and as an alternative to Marshal for Object serialization.

A fast XML parser and object serializer that uses only standard C lib. Optimized XML (Ox), as the name implies was written to provide speed optimized XML handling. It was designed to be an alternative to Nokogiri and other Ruby XML parsers for generic XML parsing and as an alternative to Marshal for Object serialization.

Fluentd Parser plugin to parse XML rendered windows event log.

Parse ISO20022 XML messages containing SEPA Customer Credit Transfer Initiation messages. Currently pain.001.001.03 is supported.

MoneyS3 XML parser and builder

Bible reference parser returns normalized sets of ranges, ideal for querying a database or XML data source such as WEB in USFX.

BibTeX-Ruby is the Rubyist's swiss-army-knife for all things BibTeX. It includes a parser for all common BibTeX objects (@string, @preamble, @comment and regular entries) and a sophisticated name parser that tokenizes correctly formatted names; BibTeX-Ruby recognizes BibTeX string replacements, joins values containing multiple strings or variables, supports cross-references, and decodes common LaTeX formatting instructions to unicode; if you are in a hurry, it also allows for easy export/conversion to formats such as YAML, JSON, CSL, and XML (BibTeXML).

Lazy loading XML parser with libxml.

Lazy loading XML parser with Nokogiri.

Rexle is an XML parser written purely in Ruby

Rexleparser is an XML parser used by the Rexle gem

Oga is an XML/HTML parser written in Ruby.

Green Button Data is a Ruby gem that can consume Green Button APIs and parse the Green Button data XML schema very quickly. It uses an event-driven SAX parser which parses XML data without building an entire DOM in memory.

A Ruby parser and full API for the Citation Style Language (CSL), an open XML-based language to describe the formatting of citations and bibliographies.

XML parser plugin is Embulk plugin to fetch entries in xml format. Supports xpath and attributes

XML Metadata Interchange (XMI) Specification parser in Ruby, tools for accessing EXPRESS data models.

A Fluentd parser plugin to extract attributes from XML data