Pooja Parmar

Easily download any installed theme or plugin as a ZIP file directly from your WordPress admin dashboard. Adds a “Download” button to the Plugins and Themes screens for quick backups or migration. Now with bulk download support!
Features: 
* Download individual plugins and themes with a single click 
* Bulk download multiple plugins or themes at once 
* Organized ZIP structure for easy installation 
* Administrator-only access for security

Download Helper

Download Helper is a lightweight WordPress plugin that lets you manage and organize downloadable files directly from your dashboard.

Abrar Ahmed

This plugin is particularly designed for developers so that they can easily upload images via URL.
Features of this plugin: 
1. You can give URL to this plugin then this will upload the image to WP and will return attachment ID. 
2. You can give the same URL multiple times but it will not upload an image each time, it will upload an image once and will return attachment ID each time when it is called. 
3. If image URL is change or size of the image on URL is different then just on that condition image will be uploaded to WordPress
It has some more functions too that will help developers for getting details about image and size as well.
<h3>Arbitrary section</h3>
The following features of this plugin are going to be defined for developer understandings.
<h3>A brief Markdown Example</h3>
Unordered list:
<ul>
<li>Function iUploadImageByURL This function is the basic function that can be used while upload image from URL. It will return Attachment_ID after creating an attachment from image URL. Image from URL will be uploaded once if URL and size of the image are same. If the same URL with the same size of the image given then already created attachment of that image will be uploaded.</li>
<li>Function iGetFileSize This function can be used to get the size of the image from URL.</li>
<li>Function sFormatSize This function will return measurement format size of the image.</li>
</ul>

URL Image Uploader

This function is a tool for developers to help them upload images from URL to the WordPress site.

Download Helper vs URL Image Uploader