Clarkesworld Magazine is an American online fantasy and science fiction magazine. It released its first issue October 1, 2006, and has maintained a regular monthly schedule since, publishing fiction by authors such as Elizabeth Bear, Kij Johnson, Caitlin R. Kiernan, Sarah Monette, Catherynne Valente, Jeff VanderMeer and Peter Watts.

Clarkesworld Magazine is published or collected in a number of formats:

• All fiction is collected annually in print anthologies published by Wyrm Publishing
• Apps are available for Android, iPad and iPhone devices
• EPUB, Amazon Kindle, and Mobipocket ebook editions of each issue are available for purchase
• All content is available online via the magazine website
• All fiction is available in audio format via podcast or direct download
• Ebook subscriptions for the Kindle and EPUB readers
• Print issues are sold on Amazon and also available as a Patreon subscription option

Clarkesworld was founded in July 2006 and published its first issue in October of that year.^[1]

In February 2007, Clarkesworld announced the first in a series of annual print anthologies starting with Realms: The First Year of Clarkesworld Magazine.^[2] It was published in June 2008 by Wyrm Publishing.^[3]

In January 2015, Clarkesworld began a relationship with Storycom to regularly translate and publish works of Chinese science fiction in their issues.^[4]

In February 2019, editor Neil Clarke announced that the magazine had received a grant from LTI Korea for the purposes of translating and publishing nine Korean science fiction stories in upcoming issues of Clarkesworld.^[5]

In January 2020, its editor Neil Clarke withdrew a short story by Isabel Fall at Fall's request, "I Sexually Identify as an Attack Helicopter", after Fall had been harassed by people who suspected the story of trolling or transphobia.^[6]

In November 2022, editor Neil Clarke announced that the magazine would be opening a submission period for science fiction written in Spanish.^[7]

In December 2022, Amazon declared that they would stop selling magazine subscriptions. Clarke called the announcement "devastating", and noted that they had been offered a chance to continue in Kindle Unlimited for less money.^[8]

On 20 February 2023, Clarke announced that the magazine would be temporarily closing submissions until an unspecified future date,^[9] with the reason being that too many AI-generated stories were being submitted.^[10]

• Neil Clarke, publisher, editor-in-chief
• Sean Wallace, editor, October 2006 – present
• Kate Baker, Podcast Director, October 2009 – present, non-fiction editor, January 2013 – present

• Gardner Dozois, reprint editor, April 2013 – May 2018
• Jeremy L.C. Jones, interviewer, September 2010 – December 2014
• Jason Heller, non-fiction editor, January 2012 – December 2012
• Cheryl Morgan, non-fiction editor, January 2009 – December 2011
• Nick Mamatas, editor, October 2006 – July 2008^[103]
• Ekaterina Sedia, interim non-fiction editor, August 2008 – December 2008

• Fantasy podcast