libxml2 is a widely used open-source library designed for parsing and manipulating XML and HTML documents. It provides a range of features, including support for XPath, XPointer, and validation against XML schemas. This makes it a powerful tool for developers working with structured data. The library is written in C and is known for its efficiency and speed. It is compatible with various programming languages through bindings, allowing integration into different applications. libxml2 is maintained by the GNOME project and is commonly used in web browsers, data processing tools, and other software that requires XML handling.