LibreTexts
Verified working Aug 1, 2026
Open textbooks and adaptive homework tools for educators.
LibreTexts 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.
Why it stands out
- Combines open textbook hosting, authoring, remixing, and homework in one connected OER ecosystem.
- Large cross-disciplinary collection, including science, math, humanities, social sciences, K-12, workforce, and Spanish-language resources.
- Built around educator customization rather than simple read-only textbook access.
- ADAPT adds openly licensed assessment infrastructure, not just static course readings.
- Nonprofit model aimed at institutional OER adoption and publishing programs.
Good to know
- Not a general online course platform; its main focus is textbooks, homework, and supporting course materials.
- Creating custom books or assessments may require learning LibreTexts-specific publishing and ADAPT workflows.
- Coverage and ready-made assessments vary by subject, so specialized courses may still need original authoring.
Photos
College faculty and OER librarians can build lower-cost course materials by remixing open textbook chapters and assessments. Adopt an existing open textbook for a biology, chemistry, math, humanities, or workforce course. Create a custom textbook by combining chapters, instructor-written content, labs, and interactive media. Use ADAPT to assign openly licensed homework questions and adaptive assessments. Support an institutional open publishing or zero-textbook-cost initiative.
Subject libraries covering 17 fields; thousands of open textbooks; remixable textbook chapters and ancillary materials; ADAPT homework and assessment system with a large shared question bank; support for embedded Jupyter notebooks, 3D visualizations, videos, and other interactive learning objects; training, webinars, and institutional collaboration programs.
Alternative listings
A 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.
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Open educational resources & free learning platformsOpenStax 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.
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Similar sites elsewhere
- OpenStax — openstax.org
- OER Commons — oercommons.org
- MERLOT — merlot.org
- Pressbooks — pressbooks.com
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