Terser
Terser is a JavaScript parser, mangler, and compressor toolkit for ES6+ that minifies and optimizes JavaScript code to reduce file size and improve performance. It removes whitespace, comments, and unused code while renaming variables to shorter names, making scripts load faster in web browsers. It is widely used in build processes for production deployments of web applications.
Developers should use Terser when deploying JavaScript applications to production to minimize bandwidth usage and speed up page loads, especially for large codebases or performance-critical sites. It is essential in modern web development workflows, often integrated with bundlers like Webpack or Rollup, to automate optimization during builds for frameworks like React or Vue.js.