elFinder
Open-source file manager for web, written in JavaScript
...Creation is inspired by the simplicity and convenience of Finder program used in Mac OS X operating system. elFinder 2.1.x is currently actively developed, and recommended version. elFinder 2.0.x is stable version but lacks advanced features. All operations with files and folders on a remote server (copy, move, upload, create folder/file, rename, etc.). High-performance server backend and light client UI. Multi-root support. Local file system, MySQL, FTP, SFTP, Box, Dropbox, GoogleDrive and OneDrive volume storage drivers. Support AWS S3, Azure, Digital Ocean Spaces and more with League\Flysystem. Flysystem driver. Cloud storage (Box, Dropbox, GoogleDrive and OneDrive) drivers. Background file/folder upload with Drag & Drop HTML5 support.