builtin-modules is a Node.js package providing a comprehensive list of all the core modules included directly within Node.js itself. This package is valuable for developers building tools that need to identify or filter out standard Node.js modules from larger dependency lists. By offering a programmatic way to access this information, builtin-modules simplifies tasks like dependency analysis, package bundling optimization, and ensuring cross-environment compatibility. Frequent updates track new versions of Node.js, guaranteeing an accurate and up-to-date module catalog.