DirectoryLister exposes the contents of any web folder
DirectoryLister is a simple, self-hosted PHP application that lets users browse and share the contents of directories over the web. It creates a web interface to list files and folders on a server, complete with download links, breadcrumb navigation, and optional themes. Ideal for file sharing and public repositories, it requires no database and can be deployed quickly on any PHP-compatible server.
...File Checksum Utility is a free software (Freeware) that is available for use at no monetary cost. It is fully functional for an unlimited time. You can copy and diffuse it without restriction if it's free of charge. The author restricts the rights of the user to modify, make derivative works, or reverse-engineer the software.