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Open textbook website, Rice University, free textbooks, OER, peer-reviewed learning resources, college courses, K-12 materials, and affordable education

Website

OpenStax

OpenStax is an open textbook website from Rice University that offers free textbooks, open educational resources, course materials, and learning tools for students and instructors.

Official site
openstax.org is the main public website for OpenStax textbooks, subjects, instructor resources, and related learning tools.
Organization
OpenStax is a nonprofit of Rice University and publishes open educational resources for students and instructors.
Core use
Students and instructors use OpenStax to read free textbooks online, download course materials, and reduce textbook costs.
OpenStax is a Rice University nonprofit initiative that publishes free open textbooks and educational resources.View icon on OpenStax

What OpenStax is

OpenStax is an open textbook website and nonprofit education initiative from Rice University. It publishes free, openly licensed textbooks and learning resources that students can read online, download, or use in courses without buying a traditional commercial textbook.

Open textbooks

Open textbooks are textbooks released with licenses that allow free digital access and reuse under stated conditions. OpenStax applies that idea to common college and school subjects, making course-ready books available through the web instead of locking them behind a bookstore purchase.

Subjects and courses

OpenStax organizes materials by subject areas such as math, science, social sciences, business, humanities, and college success. The subject catalog helps instructors find a book that matches a course, while students can read assigned chapters directly from the website.

Free access and print options

The central OpenStax promise is free digital access. Students can use web versions or downloadable files, while print copies may be available for people who prefer a physical book. That mix matters because affordability and format preferences are different problems.

Peer review and instructor resources

OpenStax emphasizes peer-reviewed course materials. Many books also have instructor-facing resources or technology integrations, though some teaching tools may require instructor verification or separate partner services. The textbook itself remains the core open resource.

Open educational resources

OpenStax is part of the broader open educational resources movement. OER work tries to reduce cost barriers, allow adaptation, and give educators more control over course materials. The value is not only that a book is free, but that it can be shared and reused under open terms.

Why it matters

Textbook prices can shape whether students buy required materials, delay access, or try to complete a course without the book. OpenStax matters because free, course-ready textbooks can reduce that barrier and let instructors choose materials without adding a large cost to enrollment.

Limits and tradeoffs

Free textbooks still need careful adoption. Instructors must check fit, coverage, accessibility, edition changes, homework systems, lab needs, and local learning goals. Open access lowers a major barrier, but it does not automatically make a course well designed or fully supported.

WHOIS domain data

Data pulled: June 1, 2026View current WHOIS record

Domain
openstax.org
IP address
18.160.46.96
Registrar
GoDaddy.com, LLC
WHOIS server
whois.godaddy.com
Referral URL
http://www.whois.godaddy.com
Created
September 27, 2011
Updated
June 25, 2024
Expires
September 27, 2032
Nameservers
ns-602.awsdns-11.net (205.251.194.90); ns-2027.awsdns-61.co.uk (205.251.199.235); ns-358.awsdns-44.com (205.251.193.102); ns-1195.awsdns-21.org (205.251.196.171)
Domain status
clientDeleteProhibited; clientRenewProhibited; clientTransferProhibited; clientUpdateProhibited
DNSSEC
unsigned