Free textbooks and courses
OpenStax, MIT OpenCourseWare and MOOCs.
OpenStax
Free online textbooks and open educational resources
MIT OpenCourseWare
Free MIT course materials
Highlights for High School (MIT OCW)
MIT OpenCourseWare guide to materials for high schoolers
Khan Academy
Free online courses, lessons and practice
CK-12
Free online textbooks, flashcards and practice
Open Yale Courses
Yale course lectures online
OER Commons
Library of open educational resources
Coursera
Online courses and certificates from universities
edX
Online courses from leading institutions
Open Textbook Library
University of Minnesota library of open textbooks
LibreTexts
Open textbook platform across many subjects
BCcampus OpenEd
Open textbooks and open education resources from British Columbia
Project Gutenberg
Free ebooks
Open Library
Open catalog of books to read and borrow
Internet Archive
Digital library of free and borrowable texts, video and music
Saylor Academy
Self-paced online courses
OpenLearn
Free learning from The Open University
FutureLearn
Online courses and degrees from universities
Stanford Online free courses
Free online courses from Stanford
Harvard free courses
Free online courses from Harvard
Stanford Engineering Everywhere
Stanford engineering course materials online
CS50x
Harvard's intro computer science course, 2026 edition
freeCodeCamp
Free coding courses and certifications
Codecademy
Interactive coding courses
PhET Simulations
Free physics, chemistry, biology, earth science and math simulations
HHMI BioInteractive
Biology resources from HHMI
The Physics Classroom
Physics tutorials and practice
Paul's Online Notes
Algebra, calculus and differential equations notes from Lamar University
Crash Course
Educational video courses
CommonLit
ELA reading program and texts
DocsTeach
Primary-source activities from the National Archives
OER Project
Free standards-based online history curriculum
Smithsonian Learning Lab
Find, create and share Smithsonian digital resources
NASA Learning Resources
NASA STEM learning resources
Marginal Revolution University
Economics videos for everyone
Federal Reserve Education (FRE.org)
Economics and personal finance resources
MERLOT
Curated collection of online learning materials
Duolingo
Language learning app
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