Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
Uppy - The next open source file uploader for web browsers
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
Filestack - Simple file uploader and robust APIs for uploading, transforming, and delivering any file into your app. Filestack is a collection of tools and powerful APIs that make it simple to upload, transform, and deliver content.
Django - The Web framework for perfectionists with deadlines
Uploadcare - File uploading, media processing & content delivery for modern web apps