NOTE: my spare time is limited which means I am unable to dedicate a lot of time on Oga. If you're interested in contributing to FOSS, please take a look at the open issues and submit a pull request to address them where possible. Oga is an XML/HTML parser written in Ruby. It provides an easy to use API for parsing, modifying and querying documents (using XPath expressions). Oga does not require system libraries such as libxml, making it easier and faster to install on various platforms. To achieve better performance Oga uses a small, native extension (C for MRI/Rubinius, Java for JRuby).