OpenStax
Verified working Aug 1, 2026
A free catalog of college textbooks organized by subject.
OpenStax provides free college-level textbooks across a range of academic subjects. The site is aimed at reducing course-material costs by making textbook access available online through a subject-based catalog.
Why it stands out
- Focused specifically on college textbooks rather than general learning content.
- Free access is central to the service, making it useful for cost-sensitive courses.
- Organizes materials by subject, which fits how instructors and students typically search for textbooks.
- Backed by an access-and-affordability mission rather than a commercial textbook sales model.
Good to know
- The site requires JavaScript to use.
- Its scope is college textbooks, not a full course platform with tutoring, grading, or live instruction.
- Coverage depends on the subjects and titles OpenStax has available, so it may not replace every required course text.
Photos
College instructors and students who need no-cost textbooks for standard courses can browse subject areas for suitable materials. Find an affordable replacement for a commercial textbook in an intro-level class. Preview available books before assigning readings or sharing links with students. Explore textbook options across multiple disciplines from one central catalog.
Subject-based browsing for college textbook titles; free access to educational materials; coverage across multiple academic categories; web-based catalog for finding available books.
Alternative listings
Open textbooks and adaptive homework tools for educators.
Open educational resources & free learning platformsLibreTexts is a nonprofit platform for finding, adapting, and publishing open educational materials. It hosts subject-based textbook libraries, supports remixing chapters into custom course texts, and connects those materials with interactive elements such as homework questions, notebooks, videos, and visualizations.
0 votesVisit siteA searchable catalog of free, adaptable textbooks for college courses.
Open educational resources & free learning platformsOpen Textbook Library is a University of Minnesota–based directory of open textbooks that can be used, downloaded, modified, and redistributed at no cost. The collection covers a wide range of academic subjects and lists more than 1,800 textbooks, with search, subject browsing, new releases, and forthcoming titles from Open Education Network members.
0 votesVisit site
Similar sites elsewhere
- Open Textbook Library — open.umn.edu/opentextbooks
- LibreTexts — libretexts.org
- BCcampus OpenEd — open.bccampus.ca
- OER Commons — oercommons.org
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