Nokogiri is a Ruby gem that makes it easy to work with XML and HTML documents.
The tool solves the problem of parsing and manipulating XML and HTML in Ruby applications by wrapping the libxml2 and libxslt libraries. It provides a straightforward API for navigating document trees, querying elements, and transforming content. The gem supports multiple parsing strategies including SAX-based parsing for streaming large documents, allowing developers to choose the approach that fits their use case.
Nokogiri suits any Ruby project that needs to parse, query, or generate XML or HTML. It is particularly valuable for web scraping, API response processing, document generation, and any scenario where structured markup needs to be read or written. The tool's reliance on battle-tested C libraries means it handles edge cases and malformed documents more robustly than pure Ruby implementations would.
The project maintains active engagement with its codebase, regularly addressing issues and incorporating improvements. Development shows consistent attention to both bug fixes and feature enhancements. The maintainers demonstrate responsiveness to the community and a commitment to keeping the tool compatible with current Ruby versions and dependencies.