h5ai is a modern file indexer for HTTP web servers with focus on your files. Directories are displayed in a appealing way and browsing them is enhanced by different views, a breadcrumb and a tree overview. Initially h5ai was an acronym for HTML5 Apache Index but now it supports other web servers too.

See the demo directory with most features enabled. A reduced example and my actual use case is the release directory for the projects on this page.

Requires PHP 5.5+ and works fine with Apache httpd, lighttpd and nginx. Best user experience with the latest versions of Chromium-based browsers, Firefox, Safari and Edge, but a static fallback is provided for older browsers or if JavaScript is disabled.