Rails provides an excellent XML Builder by default to build RSS and ATOM feeds, but nothing to help you build complex and custom JSON data structures. The standard to_json works well, but can get very verbose when you need full control of what is generated. JSON Builder hopes to solve that problem.

The Plivo Ruby SDK makes it simpler to integrate communications into your Ruby applications using the Plivo REST API. Using the SDK, you will be able to make voice calls, send SMS and generate Plivo XML to control your call flows.See https://github.com/plivo/plivo-ruby for more information.

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, j...

XML Signature verification

Monkey patches Ruby's standard XMLRPC Client to use EventMachine and fibers

NOM allows you to define a “terminology” to ease translation between XML and ruby objects

Add this to your build process, and never write XML again! Plus, you can have multiple files generated from one file.

Convert's nmap's XML output to JSON. Or pretty much any XML input as JSON output.

Provides an easy to use DSL resembling ActiveRecord for defining objects representing any XML document, including deeply nested ones. This project was extracted from my ruby-picasa gem. You can find ruby-picasa at http://github.com/pangloss/ruby_picasa or available as a gem. The project also has...

A Rack middleware that parses the POST or PUT body for JSON or XML content to a Hash and puts it into the rack.request.form_hash. Most frameworks get the params hash from there. Uses ActiveSupport and the respective parsers for parsing. So you can set it up to use Nokogiri and YajL. Useful for ex...

jaxb2ruby generates Java XML mappings via xjc, reads the resulting annotations, and passes the extracted info to an ERB template. This allows one to automatically map an XML schema to pure Ruby classes (i.e. classes that don't require JRuby) using the mapping framework of their choice...

Ruby bindings for xmlsec

fluentd xml parser plugin

Fluentd Parser plugin to parse XML rendered windows event log.

XML interface for debugger

XML Coder for ASIR

Faraday XML Middleware.

Split XML files on an element, yielding (streaming, so constant memory usage) each node in turn. Uses sgrep internally.

Download, pull out of a ZIP/TAR/GZ/BZ2 archive, parse, correct, and import XLS, ODS, XML, CSV, HTML, etc. into your ActiveRecord models. Uses Upsert internally for speed.

Binding to java lib provide xmldsig features. Sign and verify document with GOST3410 etc.