The Nokogiri web crawler tool simplifies and streamlines Ruby's interaction with XML and HTML. 

This eliminates the requirement to compile the C extension and the supplied libraries, as well as the existence of system dependencies, on supported platforms. As a result, the installation process is sped up dramatically and reliability is increased. Having a C compiler toolchain, Ruby development header files and various system requirements installed is necessary in order to utilise Nokogiri, as it is a C extension. 

There are a bunch of decent tools out there that offer the same array of services as Nokogiri. And it can sure get confusing to choose the best from the lot. Luckily, we've got you covered with our curated lists of alternative tools to suit your unique work needs, complete with features and pricing.