Creative Commons Attribution
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Created by Creative Commons
License certification Open Definition recommended conformant license, Open Definition other conformant license, Definition of Free Cultural Works conformant license
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Child licenses
- Creative Commons Attribution 2.0
- Creative Commons Attribution 2.5 (Scotland)
- Creative Commons Attribution 2.5 (Unported)
- Creative Commons Attribution 2.5
- Creative Commons Attribution 3.0 (Australia)
- Creative Commons Attribution 3.0 (Brazil)
- Creative Commons Attribution 3.0 (Costa Rica)
- Creative Commons Attribution 3.0 (IGO)
- Creative Commons Attribution 3.0 (New Zealand)
- Creative Commons Attribution 3.0 (Unported)
- Creative Commons Attribution 3.0 (US)
- Creative Commons Attribution 3.0
- Creative Commons Attribution 4.0
Content under license
- 200 Word RPG Challenge — entirety
- 24XX SRD
- 500px — part
- 5E SRD — text only
- A Shadow among Shadows
- A Spark in Fate Core
- A Vessel For Offering
- A World of Fire and Sand
- Abulafia
- Accessibility Sustainability Excellence
- AdventureLand
- Aerogel.org
- African Storybook Project — entirety
- African Storybook — entirety
- Against Intellectual Property
- Against Monopoly
- Al Jazeera
- Ampersand — Before about mid-2013: https://web.archive.org/web/20130309145623/http://leftycartoons.com/about-barry-deutsch/
- An Open Education Reader — entirety
- Antti Luode — entirety
- Argofox
- Arkfall
- Atlas of Living Australia
- Audionautix
- Australian Digital Alliance
- Australian Electoral Commission
- Australian Government Intellectual Property Manual
- Authors Alliance
- Baba Yaga's Dancing Hut — License listed for the website but unclear if it applies to the PDF as well: https://web.archive.org/web/20140818093151/http://nickwedig.libraryofhighmoon.com/2012/12/baba-yagas-dancing-hut/
- Babes in the Wood — mentioned on the Itch.io page but not in the documents themselves
- Bad Habits
- Bahama Taxi — entirety
- Bank Robbery LARP
- Beginning Titan The Distributed Graph Database
- Bertdrawsstuff
- BibServer
- Big Buck Bunny Loves Creative Commons
- Big Buck Bunny
- Bill Browne
- Black Flag Roleplaying — entirety — Dual-licensed
- Blades in the Dark RPG — part — The SRD is entirely under the license, but the full game (and translations, expansions, etc) are not.
- Blend Swap — part
- Book Dash — entirety
- Boundless
- Bounty Hunters: Metaphors for Fair Intellectual Property Laws
- Caminandes — entirety — https://web.archive.org/web/20230930143639/http://www.caminandes.com/about/
- CAPERS Core Design Guide — rules chapters
- Cat Avatar Generator — entirety — In README.md
- Cazadores
- CC Government Guide
- ccMixter — part
- Center for the Study of Innovative Freedom — As a fallback: https://c4sif.org/about/
- Centre For Policy Development
- Choosealicense.com
- CIA: Collect It All — part
- Clean Energy Wire — part — Some articles have the text: "All texts created by the Clean Energy Wire are available under a “Creative Commons Attribution 4.0 International License (CC BY 4.0)” . They can be copied, shared and made publicly accessible by users so long as they give appropriate credit, provide a link to the license, and indicate if changes were made."
- College Physics — entirety
- Connexions — There may be works under other licenses; I only saw CC BY.
- Copyright for Librarians
- Copyright in databases in Australia
- Copyright Week
- Copywrong
- Cosmo Noticias
- Cosmos Laundromat — entirety — The website and the project, as stated here: https://gooseberry.blender.org/about/
- Cosmos Laundromat — entirety — The film itself.
- Crash / Lanterns Of The Dead
- Creationistas — The videos are libre; the site has no license listed.
- Creative Commons Certificate
- Creative Commons for Educators and Librarians — entirety
- Creativeapplications Net — entirety — https://www.creativeapplications.net/about/
- D6Pool
- Daniel Bautista
- Daniel Kwon
- Daniel Solis' game icons — entirety
- Data.gov.au
- Data.gv.at — https://www.data.gv.at/info/open-data-prinzipien?locale=de
- Data.vic.gov.au
- David Revoy
- Death Takes a Holiday
- Deathtrap Dungeon
- Deep Freeze
- Department Nine
- Destiny Dice
- Dice Icons
- Dilly Daily Draws
- Directory of Open Access Journals
- Doodles & Dragons
- Dragon 2000
- DramaSystem SRD — Dual licensed.
- Dscript
- Dulse
- Dungeon Squad 2
- Dungeon World — text only
- Early Copyright History
- EBC — formerly the entirety of the site, now seemingly not listed
- Ed Startup 101
- Edition Thirteen
- Electronic Frontier Foundation
- Elephants Dream
- Elevation Of Privilege
- eLife
- Emiel Boven
- Engage 2012
- Esperando el Tsunami — entirety — "Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution 3.0 License." Confusingly, the license linked to is actually CC BY-NC-SA.
- Etcc
- Evil Mad Scientist Shop
- Exploding Kingdoms
- Extra Ordinary — 'The written text'
- F#
- Fair Use for Nonfiction Authors
- Fantastic Classes Codex
- Fate Accelerated Edition — Text only — Dual-licensed with OGL to give users more options.
- Fate Core System — Only the text of Fate Core is so licensed. See [Licensing Fate (CC BY)](http://www.faterpg.com/licensing/licensing-fate-cc-by) and [Licensing Fate (OGL)](http://www.faterpg.com/licensing/licensing-fate-ogl/) for more details.
- Fate System Toolkit — There is also an exception to the normal attribution requirements of CC BY that makes some Evil Hat Productions content under that license interoperable with OGL.
- Featurin.gs
- Feedback Loops in Game Design
- Final Decrees
- Five by Five — The first edition has all rights reserved.
- Flickr — User opt-in.
- Font Awesome — part — The documentation.
- Foodista
- For the Queen — the SRD
- Ford Foundation — entirety — Unless otherwise designated, written content within the “Learning” and “News & Stories” sections of the Website are licensed to the public through the Creative Commons Attribution 4.0 International license.
- Fortune Cookies And Nuclear War
- Free Fall
- Free for All — part
- Free Knowledge Based On Creative Commons Licenses
- Free To Mix
- Freebase
- Freedom of the Press Foundation
- Freesouls
- Frontier Encounters
- Game-Icons.net
- Ganakagok Cards
- Genesys System
- GeoNet — entirety
- Ghosts
- Glass Half — entirety
- Glide
- Global Voices
- Glyphicons — Free set was originally listed under CC BY. https://web.archive.org/web/20170317095007/http://glyphicons.com/license/
- Glyphish — In a text file in the download.
- Go Fast Turn Left
- Gracas Dream
- Grim Portents
- Grimwild: Cinematic Fantasy Roleplaying — "all text"
- Gumshoe SRD
- Gunwave
- Hackathon How To Guide
- Hairec Lilred
- Harvard Library Open Metadata
- Heroes Vs. Villains
- Hierarchy of Interface
- Hoborg
- House of Masks
- How Open Is It?
- Icommons
- I'm Fresh! You're Pretty!
- Income Models for Open Access — The PDF is licensed CC BY-NC-SA. However, the HTML version on the SPARC website appears to be CC BY. https://web.archive.org/web/20110412230231/http://www.arl.org/sparc/publisher/incomemodels/
- Incompetech
- Instructables — part
- Interactivities Ink
- International Journal of the Commons
- Introduction To Economic Analysis
- Issues In Open Research Data
- It Came from the Wide Blue Yonder
- It's a Jetsons World: Private Miracles and Public Crimes
- Ivan Golunov — part
- Jeff Preston
- Jonathan Mann
- Josh Woodward — As of 2025, all of Josh Woodward's music was CC BY licensed. — https://web.archive.org/web/20250620134556mp_/https://www.joshwoodward.com/faq
- Journal of Librarianship and Scholarly Communication
- Journal of Sustainable Development
- Keeping on the Borderlands
- Khas Fara
- Kim Diaz Holm
- Knave — entirety
- La Cura An Open Source Cure
- La Scuola in Chiaro
- Lasers & Feelings
- Leebre — Some works.
- Legacy: Life among the Ruins
- Let's CC
- Level Up: Advanced 5th Edition — entirety of SRD — Dual-licensed
- Libertarian Papers
- Libre Card Game
- Libregamewiki — The site itself is dual-licensed; the entries are on all sorts of libre games.
- Light Fantasy — An earlier version: https://web.archive.org/web/20240630013224/https://gurbintrollgames.wordpress.com/wp-content/uploads/2023/04/light_fantasy_wip_3.pdf
- Liminal Horror — Liminal Horror Deluxe Edition — There is also a more restrictive third-party license if creators want to use art assets and logos.
- Linked Open Vocabularies
- Locus — 'Locus is released under the Creative Commons CC-BY licence.'
- logodust.com — Earlier version was unambiguous: https://web.archive.org/web/20160630115608/http://www.logodust.com/
- Longshot
- Lumen Learning
- Magdeleine — entirety — It's not clear which CC BY or CC BY-SA version applies.
- Malmsturm
- Man & Ubermensch
- Material Icons — entirety
- Mathispower4U
- Media Studies 101
- Michele Bucelli — part
- Mini Six — http://www.antipaladingames.com/2024/05/mini-six-bke-released-under-cc-by-40.html
- Mist-Robed Gate — text only
- Miyoung Yi
- Monkaa — In credits
- MonsterID — entirety
- Moonshades — Mentioned on https://opengameart.org/forumtopic/moonshades-an-old-school-dungeon-crawler-in-webgl
- Morevna Project — entirety
- Move Commons
- Moving Image Contest
- Moxie — entirety — https://web.archive.org/web/20250119210714/https://www.odditypress.com/licensing
- Mrbeastdesign
- Muktware
- MULRAH
- Museums Victoria Collections — part
- Musical Artifacts — part — Among others, including all rights reserved.
- Mypolice Data
- Myriad
- Mythic Mortals — entirety
- Nameless Horror
- National Elevation Data Framework Portal
- Netflix Open Content
- New Education Highway
- New Orleans Homes
- No Country for Old Kobolds — text only
- Nordic Creative Commons Film Festival
- Not-Too-Silly Stories
- Number Appearing
- NZ Commons — entirety — "Except where otherwise noted, copyright content on this site is licensed under a Creative Commons Attribution 3.0 New Zealand License."
- OER Knowledge Cloud
- OERu
- Old Messila — Listed on the archived version: https://web.archive.org/web/20100830004313/http://www.latorra.org/old-mesilla/
- One Community — entirety
- Open Access Ebooks
- Open Access Explained
- Open Bibliographic Data Guide
- Open Business Model Canvas — entirety
- Open Compute Project
- Open Course Library
- Open Data Handbook
- Open Data, Open Society
- Open Dyslexic
- Open Hardware Journal
- Open Library Of The Humanities
- Open Licensing of Primary Grade Reading Materials: Considerations and Recommendations — entirety
- Open Policy Network
- Open States — Former license: https://web.archive.org/web/20170313191547/https://openstates.org/
- Opendesk — part — Formerly, more generous CC licenses were offered. For example, https://web.archive.org/web/20150316232917/https://www.opendesk.cc/lean/standing-desk, https://web.archive.org/web/20150203220758/https://www.opendesk.cc/lean/desk
- Openlibra — This site itself is CC BY, I'm not sure about all of the content
- OpenStax
- Opentechco — entirety
- Oral Literature in Africa
- ORC
- Orcus — A 'basic' version.
- Ostermark
- Paleobiology Database — Former license.
- Panton Discussions
- Paragon System Reference Document — SRD — The game on which the SRD is based is all rights reserved.
- Pelgrane Press
- Pepper&Carrot Mini — entirety — See https://framagit.org/peppercarrot/derivations/peppercarrot_mini
- Pepper&Carrot — entirety — https://www.peppercarrot.com/en/about/index.html#credits
- PhET Interactive Simulations — entirety — https://phet.colorado.edu/en/licensing
- Phylopic — part
- PICOL — Formerly CC BY-SA.
- Pixar One Twenty Eight — entirety
- Plays Well With Others — entirety
- PLOS — Unless otherwise mentioned.
- Pollies
- Powers For Good
- President of Russia website — [More details at the CC Wiki](https://wiki.creativecommons.org/wiki/Official_website_of_President_of_the_Russian_Federation)
- Pressbooks Directory — some works — among other licenses
- Providence Junction
- Public Domain Review — The material being reviewed is public domain; the reviews are under Creative Commons Attribution.
- Purplest Prose — entirety
- Push
- Pwning Tomorrow — part — “Business as Usual” © 2014 by Pat Cadigan “Nanolaw with Daughter” © 2011 by Paul Ford “I’ve Got the Music In Me” © 2003 by Charlie Jane Anders
- Quartz Common Products Database — entirety
- Queensland Government Data — https://www.qld.gov.au/legal/copyright
- Questquest — entirety
- Rad Geek People's Daily — entirety — http://radgeek.com/about/anticopyright/
- Rafu
- Ramon Lucha — Art on archived site.
- Recordagrave
- Resistance Toolbox — SRD, but not base game — Product page refers to an ad hoc license, but the PDF is CC BY licensed.
- Return To Maniac Mansion
- ReTux — All assets are free and open, but under a range of licenses.
- Revolucion
- Rin — entirety
- RobGreenfield.TV — entirety — http://robgreenfield.tv/creativecommons/
- Rynothebearded — part — The show, but the songs themselves are a variety of free and non-free Creative Commons licenses.
- Sanglorian's Dungeon World Stuff — entirety
- Saylor
- Science Comics
- Science Fiction Mystery — One prop written and copyright by Adam Davis
- Scienceimage
- Season Of Gratitude
- Second String Superheroes
- Shadows
- Shady's Shorts
- Shakespeare 2985
- Sharing Is Liberty
- ShoeTool — entirety
- Sintel The Game
- Sintel
- Skeksis cards for Ganakagok
- Slacking through the Sandbox
- Slate Star Codex — entirety
- So Now You're a Time Traveler
- Sol Levante
- Songs and Sagas — "Songs and Sagas and the Songs and Sagas Creator Kit" — Dual-licensed
- Spectrum of Rights
- Spring — entirety
- SpringerOpen
- Stamtar
- Stanford Engineering Everywhere — Older versions of the site (before about 2015): https://web.archive.org/web/20150207222455/http://see.stanford.edu/see/courses.aspx
- State Library Of Queensland — text only — https://www.slq.qld.gov.au/understanding-copyright
- Steampunkfitters
- Stephen Kinsella — entirety — If the CC0 license is invalid for any reason.
- StoryWeaver — https://storyweaver.org.in/en/open-content
- Sufficiently Advanced Technologies
- Super Repo
- Surian Soosay — entirety
- Sweet20
- Syria Deeply
- Take on Establishments
- Take on Magic Items
- Tannenberg 4
- Teaching Copyright
- Tears of Steel
- TeknoAXE
- Terra X-Clips — part
- The Camera Collection
- The Carnival Of Dreams
- The Classic Short Story, 1870-1925: Theory Of A Genre
- The Cookbook
- The Devil, John Moulton
- The Digital Public Domain
- The Fate Codex — Art and layout all rights reserved.
- The First 100 Days Of Government
- The Freesound Project
- The GAME System
- The Hill Productions
- The Last Door Season One — art only — The assets from the first four episodes.
- The Later Blue Tome of Amaxathroth the Cursed
- The Libertarian Standard — At least up until 2013.
- The Libre Labyrinth
- The Logic of Tales and Dreams
- The Long Way Home — entirety — The upload text on Boardgame Geek and its own website says CC BY, but the file itself says CC BY-SA.
- The Most Amazing Online Organizing Guide Ever! — entirety
- The New Birthday Song Contest
- The Noun Project — All symbols (unless already public domain). — A royalty-free license is available to avoid the need for attribution. https://help.thenounproject.com/hc/en-us/articles/200509798-What-licenses-do-you-offer-for-icons
- The Open Book
- The Power Of Open
- The Psychology Of Emotions Feelings And Thoughts
- The Resistance Toolbox — entirety — Although the sales blurb refers to the Rowan, Rook and Decard Community License, the PDF still references CC BY.
- The Social Media Reader
- The Transmogrification of Mr. Claus — entirety
- The Tube Open Movie Project
- Tor
- Training.gov.au
- Trolling Effects
- Trophy System Reference Document — text only — The whole Trophy RPG is not CC BY, but the whole SRD is. "To give proper credit, add the following after your own copyright, and in the same size as your copyright: This work is based on Trophy (trophyrpg.com), product of Jesse Ross and Hedgemaze Press, and licensed for our use under the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/). Trophy is adapted from Cthulhu Dark with permission of Graham Walmsley. Trophy is also based on Blades in the Dark (found at http://www.bladesinthedark.com/), product of One Seven Design, developed and authored by John Harper, and licensed for our use under the Creative Commons Attribution 3.0 Unported license (http://creativecommons.org/licenses/by/3.0/)."
- Twemoji
- Twenty One Turn Hero
- Twine Games
- Twisted Space
- Uncensored Interview
- (un)Common Adventure Gallery
- Understanding and Negotiating Book Publication Contracts — entirety
- Understanding Changes In Poverty
- Understanding Open Access — entirety
- unglue.it — part
- Unsung Tales
- vegepedia — entirety
- Vicious Crucible of Villa Argentate — entirety
- VlogBrothers Distribution Project — entirety
- vlogbrothers — entirety — https://www.reddit.com/r/nerdfighters/comments/49f5r1/vlogbrothers_went_ccby/d0ssbod
- Warrior, Rogue & Mage — part — The SRD.
- WATT — entirety
- Wellcome Images — Scans of public domain art; might itself be public domain.
- What's Old Is New — entirety of SRD — Dual-licensed
- White House Honey Ale
- White House
- Why Hippos Have No Hair
- Why Open Education Matters
- Why the Heck Should I Care about the TPP?
- Wide Stance
- Wikinews
- Wiley Open Access
- WOCinTech Chat — entirety
- Wordplay Basics
- World Bank Open Knowledge Repository — The majority of works are licensed under one of four licenses.
- World Bank Open Knowledge Repository — The majority of works are licensed under one of four licenses.
- Wretched & Alone SRD — entirety
- Yo Frankie
- YouTube — Some works, on an opt-in basis.
- Zero Project — https://zero-project.gr/license/