Creative Commons Licenses

All Creative Commons licenses have many important features in common. Every license helps creators (we call them licensors if they use our tools) retain copyright while allowing others to copy, distribute, and make some uses of their work – at least non-commercially. Every Creative Commons license also ensures licensors get the credit for their work they deserve.

Every Creative Commons license works around the world and lasts as long as applicable copyright lasts (because they are built on copyright). These common features serve as the baseline, on top of which licensors can choose to grant additional permissions when deciding how they want their work to be used.

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Source: http://creativecommons.org/licenses/

the licenses



Attribution 
CC BY
 

This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials. 

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Attribution-ShareAlike 
CC BY-SA

This license lets others remix, tweak, and build upon your work even for commercial purposes, as long as they credit you and license their new creations under the identical terms. This license is often compared to "copyleft" free and open source software licenses. All new works based on yours will carry the same license, so any derivatives will also allow commercial use. This is the license used by Wikipedia, and is recommended for materials that would benefit from incorporating content from Wikipedia and similarly licensed projects.

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Attribution-NoDerivs 
CC BY-ND

This license allows for redistribution, commercial and non-commercial, as long as it is passed along unchanged and in whole, with credit to you.

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Attribution-NonCommercial 
CC BY-NC

This license lets others remix, tweak, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don't have to license their derivative works on the same terms.

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Attribution-NonCommercial-ShareAlike 
CC BY-NC-SA 

This license lets others remix, tweak, and build upon your work non-commercially, as long as they credit you and license their new creations under the identical terms.

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Attribution-NonCommercial-NoDerivs 

CC BY-NC-NDThis license is the most restrictive of our six main licenses, only allowing others to download your works and share them with others as long as they credit you, but they can't change them in any way or use them commercially.

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