rollup-plugin-uglify

Rollup plugin to minify generated bundles using UglifyJS. Current stable version is 6.0.4, compatible with Rollup >=0.66.0 <2. It runs UglifyJS in a worker per chunk, improving build performance for code-split projects, and displays errors with babel code frames. Supports source maps and configurable number of workers. Note: UglifyJS handles only ES5; for ES6+ use the similar rollup-plugin-terser. This plugin has undergone several breaking changes in major versions, including moving to worker-based uglification (v5) and reverting from uglify-es back to uglify-js (v4).