"ByteHoard is an Open Source, PHP-based file management script. In short, it lets users upload, download, move, copy, edit and share files, all from within a normal web browser. From a software distribution channel, to a document repository, to a simple briefcase, the applications are almost endless. There are many features, such as multiple file uploads, time-expiring links to files, thumbnailing of most image formats, and in the future document thumbnailing, drag-and-drop file upload and the ability to browse your files using Windows Explorer, Mac OSX Tracker, Konqueror, Nautilus or some of the many WebDAV clients. And, best of all, it's entirely free."