Aozora Bunko

Aozora Bunko
青空文庫
LocationJapan
TypeDigital library
Established7 July 1997 
Collection
SizeOver 17,700 works (as of January 2026)
Criteria for collectionJapanese works in public domain or allowed by author
Other information
Websitewww.aozora.gr.jp

Aozora Bunko (青空文庫, lit.'Blue Sky Library', also known as the "Open Air Library") is a Japanese digital library. It encompasses several thousand works of Japanese-language fiction and non-fiction. These include out-of-copyright books and works the authors wish to make freely available.

Since its inception in 1997, Aozora Bunko has been both the compiler and publisher of an evolving online catalog. In 2006, Aozora Bunko began to take on a role as a public policy advocate to protect its current and anticipated catalog of freely accessible e-books.