I have a text file I created using fb2k text tools; Artist Name - Song Name \n(new line) This file includes my full music library, including 85k songs. I'd like to somehow convert this to a single or multiple Spotify Playlists. playlist-converter.net is doing one song per second, which means it is going to take roughly 24 hours to create this playlist on that site.
Is there any way i can do this locally using some github script or maybe a site that allows you to upload a file which will convert fairly quickly?
Thanks in advance

I dont know if exists a ready-to-use script for this, but you can do it yourself, its not that hard if you know some programming language.
You can use Spotify API https://developer.spotify.com/
For each line, you will have to call API with the name of song and Artist https://developer.spotify.com/web-api/search-item/
So will return an JSON object, with the id of song.
For each id you will have to call api again, to include the new song https://developer.spotify.com/web-api/add-tracks-to-playlist/
Thats it, good luck !