Officially, the answer is… not really. Unofficially, there are ways you can find free audiobooks on the platform, but they will be very limited.
The primary way of listening to titles included in Spotify’s official audiobook catalog is through a compatible Premium subscription, which you need to pay for every month. Similarly, if you opt to look up titles using Spotify’s Audiobooks genre hub, you will likely see a lot more options available for purchase. For a chance to stumble upon book titles you can get for free, you’ll need to look around via the Spotify web player’s search function. Audiobooks that bear a Get button instead of a Buy button mean good news — you get to add the selected audiobook to your library for free.
Based on testing, finding a Spotify audiobook that has the coveted Get option is rare and would require a lot of time and effort sifting through search results. If you’re not quite ready to get Spotify Premium or purchase individual audiobooks, you can try a hack of sorts.
If you look up “free audiobooks” using the search bar and select the Playlists tab at the top of the page, you can view collections put together by well-meaning Spotify users of audio tracks — which are different from the titles that appear under Spotify’s Audiobooks genre — for different book titles that you can listen to without paying an additional fee. Some of these audio tracks may be chopped up into shorter chapter files, but most of them should be available to listen to regardless of your account type. To download these audio tracks for offline listening, though, you’d need a Premium subscription.