Uppy - The next open source file uploader for web browsers
DROPitTOme - Allows you to let others securely upload files to your Dropbox account.
tus.io - File Uploads
File Request Pro - Collect and receive file from anyone in a quick, simple and secure way. File request links and secure, branded upload pages that go straight to Google Drive, OneDrive, Dropbox or your Email.
Uppy.io - Next open source file uploader for web browsers
dbinbox - dbinbox makes it easy to send files