SFTPGo

Description: Fully featured and highly configurable SFTP server with optional HTTP/S, FTP/S and WebDAV support. Several storage backends are supported: local filesystem, encrypted local filesystem, S3 (compatible) Object Storage, Google Cloud Storage, Azure Blob Storage, SFTP.
Interface: CLI, Web-Based Admin
License: open-source
Homepage
Platforms:  Linux, macOS, and Windows
Commentary: 
Usage Example: sftpgo serve

Screenshot: