Terser

Terser is a powerful JavaScript parser, mangler, and compressor toolkit designed for modern ECMAScript (ES6+). It currently stands at version 5.46.1 and is under active development, serving as the maintained successor to the now-abandoned `uglify-es` project and `uglify-js` (which lacks ES6+ support). Terser largely retains API and CLI compatibility with its predecessors, making it a familiar choice for developers. Key differentiators include its robust support for modern JavaScript syntax and ongoing maintenance, addressing the limitations of older minifiers. While `terser` previously offered beautification features, these are being removed in favor of dedicated tools like Prettier. The project recommends using it in conjunction with bundlers like RollupJS for optimal output size.