This script fetches all songs in your provided playlist and compares them.
Similar artist title pairs will be listed together and their similarity displayed in percent.
Exact duplicates are listed seperately.
Supports multithreading! Comparing 9023 songs with a Ryzen 9 7900X takes ~25 seconds (singlethreaded takes 5 minutes and 43 seconds).
Click here: Download
Extract the zip and open the spotify-playlist-similarity-checker folder.
You need to have at least node.js version 14.15.0 installed: Download
To get your version number (if you already have node installed) type node --version in your console or terminal.
Open a console window or terminal in the current folder.
Run the command npm install and wait for it to complete. This will install all necessary packages for the script.
Getting the API key recently got kind of annoying, thanks Spotify. Here's how to do it:
Head over to the Spotify Documentation website.
Right click somewhere, click on Inspect and open the Network tab.
Now click the 'Try it' button on the very right and you should see a 'GET' or 'fetch' request (depending on your browser) to 'tracks' pop up in your network tab.
Click on it, scroll down until you see the 'Authorization' key under 'Request Headers' and copy the long token that you see behind 'Bearer'.
Open the config.json with a text editor.
Paste the key into the oAuthToken key brackets.
Note: The key expires every few minutes so you have to re-request the token the next time.
I might look into requesting the key automatically in the future.
Copy the Share Link of your playlist by right clicking the playlist in your Spotify Desktop App and selecting Share > Copy Link.
Copy the playlist ID from the link, between the last slash and the question mark:
https://open.spotify.com/playlist/{this_is_the_id_to_copy}?si=some_random_bullshit_we_can_ignore
Paste the playlist ID into the playlistID key brackets.
You can now start the script by executing in the terminal:
node index
The script will fetch all songs and then compare them.
The full output will also be saved in the output.txt file, which might make looking at the results easier for you.
Documentation of config settings:
- playlistID (String): Spotify playlist ID of the playlist to fetch
- oAuthToken (String): Spotify oAuthToken to authorize this script to access the Spotify API (see setup above request)
- fetchDelay (Number): Time in ms to wait between each 100 songs requested from the Spotify API. Default: 500
- ignoreSimilarityBelowPerc (Number): Similarities below this percentage value will be ignored. Default: 90
The similarity of two artist - song title pairs is measured with the Jaro-Winkler distance.