Internet Speculative Fiction Database

ISFDB: The Internet Speculative Fiction Database
Type of site
Online database
Headquarters
Area servedWorldwide
OwnerAl von Ruff
Key people
  • Al von Ruff
  • Ahasuerus
URLisfdb.org
CommercialNo
Registration
  • None to view
  • Required to edit
Launched8 September 1995 (1995-09-08)
Current status2,380,108 story titles from 283,651 authors (as of 19 June 2025)
Written in

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 June 2025, the site had catalogued 2,380,108 story titles from 283,651 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.