Customizr

Customizr is a build tool designed to optimize Modernizr installations by automatically detecting used feature tests within a project's JavaScript and (S)CSS files and generating a custom, minified Modernizr bundle. It helps developers create lean, performant websites by eliminating unused Modernizr tests, thereby reducing asset size and improving load times. The current stable version is 3.0.5, with recent minor updates indicating active maintenance and compatibility with modern Node.js environments. It operates primarily as a command-line interface tool, offering extensive configuration options via a JSON file. Key differentiators include its intelligent crawling capabilities for automated test detection, a high degree of configurability, and seamless integration with popular build systems like Grunt and Gulp through dedicated wrapper packages. This streamlines the Modernizr optimization process, ensuring only the necessary feature detections are included in the final build.