Just because a file is available online does not mean it can be copied, shared, or modified. Many sites, however, provide materials under Creative Commons licenses that clearly define how those works can be used. The resources below either host content under Creative Commons licenses or allow you to limit searches to licensed materials.
Always check the specific license for any item you plan to use, follow any stated conditions, and provide attribution. (See the Attributing CC-Licensed Works page for guidance.)
The tools listed below make it easier to find reusable materials for your teaching, research, and creative projects.