Simple File Upload is the easiest way to allow users to add files to your site. Simple File Upload handles all of the tooling surrounding file uploading for you. You do not need a cloud storage account.
Simple File Upload replaces a hidden input tag you create with a file upload widget. When the user drops a file, it is uploaded to the cloud and a URL that links to that file is returned.
Simple File Upload uses direct uploads. In a direct upload, a file is uploaded to S3 from a user's browser, without passing through your app.
File uploader widget