UglifyJS is a JavaScript compressor/minifier written in JavaScript. It also contains tools that allow one to automate working with JavaScript code. A parser which produces an abstract syntax tree (AST) from JavaScript code. A code generator which outputs JavaScript code from an AST, also providing the option to get a source map. A compressor (optimizer). it uses the transformer API to optimize an AST into a smaller one.
PAT is a complete web application that allow to manage files (basic and advanced functions like compression in gz), ftp, and database all in one. Designed to reproduce a Graphical User Interface (GUI) with drop-down and context menu for easy use