JSZip

JSZip is a JavaScript library for creating, reading, and editing ZIP archives directly in the browser or Node.js environments. It allows developers to generate downloadable ZIP files client-side without server interaction, useful for bundling multiple files for users. JSZip supports adding files from various sources including text, binary data, base64 strings, and canvas elements. The library can read existing ZIP files, extract their contents, and modify or add new files programmatically. It provides compression options and supports folder structures within ZIP archives for organizing files. JSZip works asynchronously to prevent blocking the browser during compression operations on large files. The library is commonly used in web applications for generating reports, exporting data, creating downloadable packages, and handling file uploads.