Uppy - The next open source file uploader for web browsers
Sucuri - Website Protection, Malware Removal, and Blacklist Prevention
CloudExplorer - Cloud Explorer is a open-source Amazon S3 client.
Amazon CloudFront - Amazon CloudFront is a content delivery web service.
CarrierWave - Solution for file uploads for Rails, Sinatra and other Ruby web frameworks.
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.