You can use this JavaScript snippet to export a playlist on Deezer to a CSV file, e.g. to import it later into another player/service or just to make a backup.
- Open Deezer website in your browser
- Click on a playlist to view its songs
- Open Developer Console: Go to Menu -> More Tools -> Developer Tools
- Paste the contents of deezer-export.js into the console and hit Enter to execute the script
- Give it a few seconds
When the script is finished running, you will be asked to download a .csv file with song info - titles, albums, artists.