Directory Lister is described as 'is the easiest way to expose the contents of any web-accessable folder for browsing and sharing' and is an app in the development category. There are four alternatives to Directory Lister for a variety of platforms, including Self-Hosted solutions, Windows, Linux, Mac and NGINX. The best alternative is h5ai, which is both free and Open Source. Other great apps like Directory Lister are filebrowser.org, Apaxy and apaxy v2.
File Browser is a create-your-own-cloud-kind of software where you can install it on a server, direct it to a path and then access your files through a nice web interface. You have many available features!.