An open educational resource repository is an online storage system that allows educators to share, manage and use education resources. Repositories can contain a collection of learning items that support instruction including textbooks and ancillary materials. See the list below for some of the many OER repositories. Because the number of individual repositories is growing, meta search engines have been developed to search multiple repositories simultaneously.
Launches a real-time, simultaneous search across multiple different sources of open educational materials.
Openly Available Sources Integrated Search (OASIS) is a search tool that aims to make the discovery of open content easier. OASIS searches open content from multiple different sources.
The B.C. Open Textbook Collection is home to a growing selection of open textbooks for a variety of subjects and specialties. Discover open textbooks that have been reviewed by faculty.
eCampusOntario is continually improving their OER library to meet the needs of Ontario’s postsecondary educators and learners.
Provides access to curated online learning and support materials and content creation tools, led by an international community of educators, learners and researchers.
OER Commons is a public digital library of open educational resources. Explore, create, and collaborate with educators around the world to improve curriculum.
OpenStax offers free post-secondary textbooks for all types of students, making education accessible & affordable for everyone.
Open textbooks are licensed by authors and publishers to be freely used and adapted. Download, edit and distribute them at no cost.
Collection of open-content textbooks.
Search more than 700 million openly licensed images, audio and more.
Explore millions of images on Flickr sorted by Creative Commons Licenses.
Stock photos that feature trans and non-binary models. All images released under a CC BY-NC-ND 4.0 license.
Filter photos by ‘usage rights’.
Free use of photos and videos, attributions not required.
Royalty-free use of photos and more. Modify or adapt content, attributions not required.
Use photos for free, including for commercial purposes, without permission from or attributing the photographer.
Freely useable media repository, with varying licenses.
Free, publicly accessible, openly-licensed digital collection of high-quality teaching and learning materials.
Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more.