OpenStax
Peer-reviewed, openly licensed textbooks for college courses — completely free. Covers biology, chemistry, physics, economics, history, and more.
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Public VaultResources
Free Textbooks & Papers
Never pay for a textbook again. The best free, legal, and open-access libraries and academic paper resources for every subject.
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MIT OpenCourseWare
Free lecture notes, exams, problem sets, and videos from actual MIT courses. One of the best free educational resources in existence.
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Project Gutenberg
Over 70,000 free eBooks — primarily classics and public domain works. Essential for lit courses, history, and philosophy.
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Google Scholar
Search across academic papers, theses, books, and court opinions. Use the "Cited by" feature to trace research lineages.
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JSTOR Open Access
Thousands of free academic articles, primary sources, and open books. No paywall for open-access content.
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Open Library
Borrow digital books for free from the Internet Archive. Huge selection spanning millions of titles — check here before buying.
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Anna's Archive
The world's largest open-access library search engine. Searches across multiple repositories to find free versions of books and papers.
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Unpaywall
Browser extension that automatically finds free, legal versions of research papers as you browse. Works seamlessly with Google Scholar.
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