HTML5 Drag and Drop API

A native browser API that enables elements to be dragged and dropped across web pages and operating systems using built-in DOM events.

The HTML5 Drag and Drop API provides native browser support for making web elements interactive without relying on heavy external libraries. By leveraging the draggable attribute and a suite of event listeners (such as dragstart, dragover, and drop), developers can seamlessly move elements on a page or accept direct file uploads from a user's local operating system. The API uses the DataTransfer object to securely package and pass data between the drag source and the drop target, making it a highly efficient choice for building modern kanban boards, file drop zones, and customizable user interfaces.

https://developer.mozilla.org/en-US/docs/Web/API/HTML_Drag_and_Drop_API