Creative Commons Attribution

A set of permissive licenses.

This is a free, libre and open license.

Details

Created by Creative Commons

License certification Open Definition recommended conformant license, Open Definition other conformant license, Definition of Free Cultural Works conformant license

License aspect Attribution required

Child licenses

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
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
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
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 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/