About Calisphere

Welcome to Calisphere: your gateway to California’s remarkable digital collections. Calisphere provides free access to unique and historically important artifacts for research, teaching, and curious exploration. Discover over one million photographs, documents, letters, artwork, diaries, oral histories, films, advertisements, musical recordings, and more.

The collections on Calisphere have been digitized and contributed by all ten campuses of the University of California and other important libraries, archives, and museums throughout the state.

Using Calisphere

For more information about how to use Calisphere and the materials you find here, please consult the help page and terms of use. Special information about using Calisphere in the classroom can be found on our For Educators page.

Add your collections

Calisphere aggregates digital collections from libraries, archives, museums, historical societies, and other cultural heritage organizations in California. If you represent such an organization and are interested in contributing digital content to Calisphere, click here to learn more.

Subscribe to our newsletter

Be the first to hear about new collections and exhibitions, posters, and online research tips and resources! Subscribe if you'd like the latest news from Calisphere delivered right to your inbox.

Free posters!

We offer free posters for students, teachers, and librarians. Visit the poster order page for more details.

Spread the word

Love Calisphere? Help us spread the word! Check out our outreach tips and tools for sharing Calisphere with others.

Our organization

Calisphere is a project of the University of California Libraries, developed and maintained by the California Digital Library.

Information about Calisphere's technical framework can be found on our help page.