CloudExplorer is described as 'File picker for web apps, free and open source, connects to cloud storage services' and is a File Manager in the Development category. There are six alternatives to CloudExplorer for a variety of platforms, including Online / Web-based, Self-Hosted solutions, Meteor, CKEditor and Amazon Simple Storage Service. The best alternative is Uppy, which is both free and Open Source. Other great apps like CloudExplorer are Uploadcare (Paid), Filestack (Freemium), Kloudless (Paid) and AssetPicker (Free, Open Source).
Uploadcare handles file uploading, storing, processing, and intelligent delivery via CDN. Save resources spent building the file infrastructure, optimize your content, conversions, load times, traffic, and UX.
Filestack provides everything a developer needs when working with user content, from connecting to over 15 cloud storage services like Dropbox, Facebook, and Google Drive, to large file uploading directly to S3, to advanced conversion and post-processing functionality.
Receive print jobs, photos, videos, graphics and other large files on your site. Just copy and paste some HTML to get an upload form that looks like your site. Setup email alerts, password protection and PayPal integration.