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licenses explained

Choosing a License

A Spectrum of Rights How It Works

Offering your work under a Creative Commons license does not mean giving up your copyright. It means offering some of your rights to any taker, and only on certain conditions.

What conditions? Our site will let you mix and match such conditions from the list of options below. There are a total of eleven Creative Commons licenses to choose from.

Attribution Attribution. You let others copy, distribute, display, and perform your copyrighted work — and derivative works based upon it — but only if they give you credit.

Example: Jane publishes her photograph with an Attribution license, because she wants the world to use her pictures provided they give her credit. Bob finds her photograph online and wants to display it on the front page of his website. Bob puts Jane's picture on his site, and clearly indicates Jane's authorship.

Noncommercial Noncommercial. You let others copy, distribute, display, and perform your work — and derivative works based upon it — but for noncommercial purposes only.

Examples: Gus publishes his photograph with a Noncommercial license. Camille incorporates a piece of Gus's image into a collage poster. Camille is not allowed to sell her collage poster without Gus's permission.

No Derivative Works No Derivative Works. You let others copy, distribute, display, and perform only verbatim copies of your work, not derivative works based upon it.

Example: Sara licenses a recording of her song with a No Derivative Works license. Joe would like to cut Sara's track and mix it with his own to produce an entirely new song. Joe cannot do this without Jane's permission (unless his song amounts to fair use).

Share Alike Share Alike. You allow others to distribute derivative works only under a license identical to the license that governs your work.

Note: A license cannot feature both the Share Alike and No Derivative Works options. The Share Alike requirement applies only to derivative works.

Example: Gus's online photo is licensed under the Noncommercial and Share Alike terms. Camille is an amateur collage artist, and she takes Gus's photo and puts it into one of her collages. This Share Alike language requires Camille to make her collage available on a Noncommercial plus Share Alike license. It makes her offer her work back to the world on the same terms Gus gave her.

More examples are available on our examples page. Also note that every license carries with it a full set of other rights in addition to the allowances specifically made here.

If you are interested in licensing software documentation or other supporting text for a piece of code, we recommend the GNU Free Documentation License.

Taking a License

When you've made your choices, you'll get the appropriate license expressed in three ways:

  1. Commons Deed. A simple, plain-language summary of the license, complete with the relevant icons.
  2. Legal Code. The fine print that you need to be sure the license will stand up in court.
  3. Digital Code. A machine-readable translation of the license that helps search engines and other applications identify your work by its terms of use.

Using a License

You should then include a Creative Commons "Some Rights Reserved" button on your site, near your work. Help and tips on doing this are covered here. This button will link back to the Commons Deed, so that the world can be notified of the license terms. If you find that your license is being violated, you may have grounds to sue under copyright infringement.


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Creative Commons License
Except where otherwise noted, this site is
licensed under a Creative Commons License