babel-plugin-transform-es2015-modules-systemjs transforms ES2015 module syntax to SystemJS format. It's a Babel plugin that converts ES module import and export statements into SystemJS's System.register calls, enabling compatibility and usage with the SystemJS module loader. Ideal for projects requiring SystemJS for module management while leveraging modern ES2015 syntax during development. This plugin assists in bridging the gap between ES modules and SystemJS, streamlining module loading and execution.