Learning resources for all!

OpenStax is the world’s largest publisher of open education resources (OER) and a provider of interactive learning technologies and education research for high school and college. We are a nonprofit initiative of Rice University.

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25 years of making a difference

Since the publication of our first textbook in 2012, we have saved 36.1 million students $2.9 billion across 150 countries.

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More than free online textbooks

A library of 70+ free resources with aligned instructional materials and interactive learning technologies for your course.

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Teach freely, learn equitably

Knowledge is a public good, not a privilege. OpenStax values inclusivity, representation, and the democratization of knowledge.

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Educating the world requires partnership

OpenStax partners with EdTech organizations to deliver low-cost, high-value instructional tools aligned with our content.

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Higher Education

We publish high-quality, peer-reviewed, openly licensed college textbooks that are free online and low-cost in print.

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K12 Education

Explore our openly licensed library of resources and free instructional materials for high school teachers.

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Learning Research

Get personalized learning insights and earn recognition badges. OpenStax Kinetic is a platform to help understand learning.

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What's new at OpenStax

Imagine... no limits to learning!

OpenStax is looking to the future with excitement and purpose. Our team is creating tools and technologies that can help every learner achieve their dreams. We imagine a world where education is engaging and amazing for all!

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Full computer science collection now available!

This collection includes 5 up-to-date, relevant, and expertly authored digital textbooks, each with free aligned instructional support materials. These resources are ready to support learners and educators in one of today's most popular fields!

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OpenStax Algebra 1 approved by Texas SBOE!

Developed in collaboration with more than 250 Texas teachers, this engaging, research-based curriculum has officially been added to the Texas Instructional Materials Allotment list!

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Meet Amos — An OpenStax educator who inspires learning!

Amos Tarfa helps students in the U.S. and Nigeria build strong academic foundations and make meaningful connections to their learning with OpenStax! Please read our blog to learn more about Amos!

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We’ll show you how to take advantage of all that OpenStax has to offer.

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