Many websites offer completely free, full-length audiobook downloads, and I tested them to find the very best choices. Unlike many "free" audiobook sites, these sources are completely legal. This access is possible because the audiobooks are in the public domain or because the websites have explicit permission from the authors.

Digitalbook.io (formerly Librophile) is a directory that makes it easy to find public domain audiobook downloads. You can download the entire audiobook, play just a clip, or open the book as a podcast.

While the collection isn’t huge, I like that I can browse trending or popular audiobooks to find one I like, or browse the list of genres, authors, or languages. This site is incredibly clean and easy to use. I never have trouble finding something interesting.

There are over 100,000 items here, some of which are audiobooks and others are regular e-books.