Don't look for Microsoft to provide drag-and-drop functionality for Blazor, though it can still be done via JavaScript interop.

SortableJS, a JavaScript library for creating reorderable drag-and-drop lists, has been wrapped into a component for Microsoft’s Blazor web application builder and renamed Blazor Sortable.

Dropzone.js makes it dead simple to add a drag-and-drop file uploader to any website, complete with previews of uploaded files. Dropzone also supports the traditional file-picker uploading as well ...

…and is actually really useful for Web developers wanting to implement drag and drop functionality in a quick and elegant way. You can get it on GitHub.

rnSoft has released jsTool 1.0 for Mac OS and Mac OS X, an application that simplifies JavaScript coding through a drag-and-drop interface. This software is geared towards both amateurs and ...

But even sites that use a simple HTML button with no special JavaScript coding can still accept files through this drag-and-drop method.