Flmngr - Free PHP File Manager
CKFinder - CKFinder is a powerful and easy to use Ajax file manager for web browsers.
Responsive Filemanager - RESPONSIVE FileManager is a free open-source filemanager image manager stand-alone and plugin for TinyMCE 4, CKEditor and CLEditor. It's possible to select files, images and videos from a server folder and upload them from your computer
FileUltimate - File Manager Control for ASP.NET MVC and WebForms
Tiny File Manager - Web based File Manager in PHP, Manage your files efficiently and easily with Tiny File Manager
PHP File Manager - phpFileManager is a complete filesystem management tool on a single file.