Is there any form of markup / library that would allow me to access a file-tree similar to what show's up in the chrome "inspect" "sources" tab? I'm working on

Is there any form of markup / library that would allow me to access a file-tree similar to what show's up in the chrome "inspect" "sources" tab? I'm working on a system to extract m3u8 files from websites. Haven't found a good way to do this yet a few years since my last project that required scraping with a headless browser.