Listen your Spotify songs offline. Method by: hrustovi64 Before we start, you will need to have another account that is premium. This shouldn’t be a problem as there are a lot of methods for that on HF. Just open a new account and take 30 days free premium offer. After you have that continue reading:
1. Go to your Spotify account and click on “Songs”. Click on any song and hit “CTRL+a” to select all songs in your library. Now hit CTRL+c to copy them.
2. Create new playlist. It will be empty like this. Now hit CTRL+V to add all the songs you previously copied from your library.
3. Open previously created playlist’s options and click on make public.
4. Log out from your main account and log in on the account you have 30 days free premium on. Search for your main account’s username, open your profile and click on public playlists. Playlist you’ve just created with all the songs from your library should be here.
5. Open the playlist. Click on follow and now you should be able to toggle Download to ON. Your songs should start downloading. 
This process can be repeated as much times as you like. Also, once the songs are downloaded to your phone they won’t use your data plan even if you log in on the account that doesn’t have premium because the songs are already cached in your phone’s memory. Enjoy listening to your library offline!