grunt-bundle-jsnext-lib

Grunt plugin to bundle ES6 modules into a single file for browsers or CommonJS for Node.js. Version 0.5.0 is the latest stable release (last updated 2017). Relies on es6-module-transpiler and a custom npm resolver. Differentiators: supports jsnext:main for publishing ES6 modules via npm, multiple output formats (bundle, CJS, system.register), and source maps. Development has been inactive since 2017; consider modern alternatives like rollup or webpack.