Uppy

vs

Dropzone

Uploadcare provides companies with simple, powerful, developer-friendly file uploading, processing & delivery for web apps. With Uploadcare you and your team get a complete out-of-the-box solution, built for engineers by engineers. Uploadcare service include features like webhooks for notifying when your application is about to upload files or trigger actions, document conversion for 12 formats ranging from PDFs to JPEG. Video processing that allow you to crop, trim, adjust resolution, generate thumbnails and encode into MP4, WebM, and OGG. Object recognition that  allow you to tag images with detected objects. Receive a list of objects with certainty values.

Droplr is an all-in-one screenshot and screen recorder that allow you to save files instantly to the cloud with a link you can share with anyone, anywhere. Droplr can be used nativley on macOS and Windows, and in all moder web browsers to capture part, the entire screen, or the full webpage, screen record with optional webcam as a GIF or HD video, and automatically saves to your account in the cloud where files are instantly saves a link to your clipboard for easy sharing.

Store your files in the cloud with Dropbox and use them across all your devices or share them with friends. Dropbox is a cloud backup services that can be used to store your files online in a secure fashion. With Dropbox you receive 2GB of free storage space when your register, you also get 500MB extra storage for every friend you refer. If you want more you have to opt for a paid subscription.