Get browser download path with javascript

That is not possible.

Pure browser-JavaScript is not be able to get information about the user's filesystem. The default download path might also contain sensible information, which is risky:

Imagine that one stores his downloads at C:\CompanyName\RealName\PhoneNumber\Adress\.

https://www.npmjs.com/package/downloads-folder

Usage

const downloadsFolder = require('downloads-folder');

console.log(downloadsFolder());

Installation

$ npm install downloads-folder

Browsers are deliberately isolated from the local filesystem in order to prevent scripting attacks. You cannot get this information.