First, a crucial note: Autobiography of a Yogi is not in the public domain. The original 1946 edition is under copyright protection in most countries until at least 2040 (depending on local laws). The more widely available "Self-Realization Fellowship (SRF) Edition" – which includes updates, corrections, and appendices added before Yogananda’s passing in 1952 – is actively protected by the publisher.
You can download the of Paramahansa Yogananda's Autobiography of a Yogi for free, as it is in the public domain . Here are the most reliable ways to access it legally: autobiography of a yogi pdf free download
The Self-Realization Fellowship (Yogananda’s official organization) has made the full text available through their digital library. While they do not typically offer a downloadable, offline PDF, they provide a fully searchable, high-quality online reader. You can access it by visiting or directly searching for "SRF Autobiography of a Yogi online reader." First, a crucial note: Autobiography of a Yogi