Turning several browser files into one download usually leads to a backend endpoint: upload the files, create an archive on the server, then send it back.
For files that are already in the browser, that round trip is unnecessary. You can create the ZIP locally and keep every file on the user's device.
In this tutorial, we'll use Eazip, an open-source JavaScript toolkit for ZIP downloads. Its Core package creates and downloads the archive entirely in the browser.
Install Eazip
npm install @eazip/core
