File Finder is an interesting web tool, using LeakIX API resources to search for exposed internet files. This tool often helped me when I was searching for certain files on the internet and checking if this site which contains this file was registered with a bug bunty program, it is really the perfect and interesting tool.
the current version is a version is a graphical version so if you run it on terminal you will not have a good rendering, and it requires an internet connection to better connect to the internet and search files, so if you want it use you can opt for REPLI or your own web server which runs PHP.
Warning
I would like to point out that this tool was created as part of learning and automating actions, so I am not responsible for its misuse.