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24 alternativesOpenIntro
OpenIntro creates educational materials designed to make learning more accessible.
About OpenIntro
OpenIntro is a nonprofit educational organization that develops and distributes free learning materials, with a core focus on statistics and mathematics textbooks. All of its core textbooks are available as free, perpetual PDFs, with low-cost print options also offered for users who prefer physical copies. The organization also provides supporting resources including slides and videos to supplement course content.
Verified instructors can access additional teacher-focused resources, including desk copies of textbooks, solutions for statistics titles, and sample exams. OpenIntro is financially sustained by print book sales rather than profit maximization for shareholders, to prioritize accessibility for students and educators.
Key features
- Free perpetual PDF access to statistics and mathematics textbooks
- Low-cost print versions of all core textbooks available
- Supporting learning resources including slides and videos
- Verified teacher access to desk copies and course materials
- Solutions and sample exams available for statistics textbooks
- Nonprofit model prioritizing accessibility over shareholder profit
Best for: Students and educators in statistics and mathematics courses, particularly those seeking free or low-cost course materials.
Good for
- All core textbooks are available as free, perpetual PDFs with no access cost
- Low-cost print options are available for all core textbooks
- Nonprofit structure prioritizes student and teacher needs over shareholder profit
OpenIntro at a glance
- Website
- openintro.org
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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OpenIntro FAQ
How do students access OpenIntro textbooks?
All core textbooks are available for free as perpetual PDFs, with low-cost print options also offered.
What resources are available for verified instructors?
Verified teachers can request desk copies, access statistics textbook solutions, and review sample exams.
How is OpenIntro financially sustained?
The nonprofit is funded by print book sales, not profit distribution to shareholders.
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