The CC0 Public Domain Dedication
CC0 (aka CC Zero) is a public dedication tool, which enables creators to give up their copyright and put their works into the worldwide public domain. CC0 enables reusers to distribute, remix, adapt, and build upon the material in any medium or format, with no conditions.
Choosing a license
The six licenses and the public domain dedication tool give creators a range of options. The best way to decide which is appropriate for you is to think about why you want to share your work, and how you hope others will use that work.
For help, try the CC license chooser >
Before licensing
Before you apply a CC license or CC0 to your work, there are some important things to consider:
The licenses and CC0 cannot be revoked. This means once you apply a CC license to your material, anyone who receives it may rely on that license for as long as the material is protected by copyright, even if you later stop distributing it.
You must own or control copyright in the work. Only the copyright holder or someone with express permission from the copyright holder can apply a CC license or CC0 to a copyrighted work. If you created a work in the scope of your job, you may not be the holder of the copyright.
See more pre-licensing considerations >
How to apply a CC license or CC0 to your work
CC-licensing your work is simple. All you have to do is choose the CC license that suits your needs and then communicate this choice in a way that will be clear to people who come across your work. As part of this communication, you should include a link to the license you’ve chosen.
This can be as simple as a bit of text stating and linking to the license in a copyright notice, like this:
© 2019. This work is openly licensed via CC BY 4.0.
…or as complex as embedding the license information on your website using the HTML code associated with the particular license. Use the CC license chooser to get the relevant HTML code.