filepond

FilePond is a JavaScript library that adds polished, user-friendly file upload functionality to websites. Instead of the browser's default plain file-picker button, FilePond provides a drag-and-drop zone where users can drop files, paste them from the clipboard, or select them from their device. It handles the actual upload to your server in the background (asynchronously — meaning the page stays usable while files transfer) and includes built-in image optimization: it can automatically resize, crop, filter, and correct the orientation of photos before uploading, which makes uploads faster and reduces storage needs on the server.

It works with plain JavaScript and also has adapter packages for popular front-end frameworks including React, Vue, Angular, and Svelte. A plugin system lets you extend functionality with features like file size and type validation, image preview, PDF preview, and more. Backend helper packages are available for PHP, Django, and Laravel to handle the server-side receiving of uploads.

You would use FilePond when building any web app that needs a solid file-upload experience — profile photo uploads, document submission forms, media galleries, or anything where you want a smooth, accessible interface rather than a bare browser input. It is accessibility-tested (compatible with screen readers) and works on both mobile and desktop. The full README is longer than what was provided.