OpenStax
Peer-reviewed, openly licensed textbooks for college courses — completely free. Covers biology, chemistry, physics, economics, history, and more.
freetextbooks
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.
MIT OpenCourseWare
Free lecture notes, exams, problem sets, and videos from actual MIT courses. One of the best free educational resources in existence.
studyfree
Project Gutenberg
Over 70,000 free eBooks — primarily classics and public domain works. Essential for lit courses, history, and philosophy.
freetextbooks
Google Scholar
Search across academic papers, theses, books, and court opinions. Use the "Cited by" feature to trace research lineages.
studyresearch
JSTOR Open Access
Thousands of free academic articles, primary sources, and open books. No paywall for open-access content.
freeresearch
Open Library
Borrow digital books for free from the Internet Archive. Huge selection spanning millions of titles — check here before buying.
freetextbooks
Anna's Archive
The world's largest open-access library search engine. Searches across multiple repositories to find free versions of books and papers.
textbooksresearch
Unpaywall
Browser extension that automatically finds free, legal versions of research papers as you browse. Works seamlessly with Google Scholar.
freeresearch