Internet Speculative Fiction Database

ISFDB: The Internet Speculative Fiction Database

Type of site	Online database
Headquarters	United States
Area served	Worldwide
Owner	Al von Ruff
Key people	Al von Ruff Ahasuerus
URL	isfdb.org
Commercial	No
Registration	None to view Required to edit
Launched	8 September 1995; 29 years ago (1995-09-08)
Current status	2,002,324 story titles from 232,816 authors (April 2022)[1]
Written in	MySQL Python

The Internet Speculative Fiction Database (ISFDB) is a database of bibliographic information on genres considered speculative fiction, including science fiction and related genres such as fantasy, alternate history, and horror fiction. The ISFDB is a volunteer effort, with the database being open for moderated editing and user contributions, and a wiki that allows the database editors to coordinate with each other. As of April 2022,^[update] the site had catalogued 2,002,324 story titles from 232,816 authors.

The code for the site has been used in books and tutorials as examples of database schema and organizing content. The ISFDB database and code are available under Creative Commons licensing. The site won the Wooden Rocket Award in the Best Directory Site category in 2005.