Freedom report

Two barsScore 6.4

  • Free tierA free tier is on its own pricing page
  • Open codeNo open-source code on record
  • Runs widely1 of 6 device platforms
  • DocumentedPlans, terms and facts published

Universal Open Textbook Initiative (UOTI) is a free web repository for open textbooks. Its catalog lists 95 books across subjects including mathematics, science, history, business, and computing. Visitors can search by keyword or filter by age group and language, from learners ages 3–5 through graduate and professional learners ages 23+. Language filters include English, Chinese (Simplified), Spanish, Arabic, Bengali, and Polish. Textbook pages support online reading and PDF downloads. UOTI says it selects textbooks by credentialed experts and translates them into major languages. Licenses differ by title; resources are primarily under Creative Commons licenses, so readers should check each title’s details before sharing or adapting it. Reading and downloading do not require an account. The initiative also says it is pursuing partnerships with education ministries and universities to tailor editions to national curricula. It was founded in 2024.

Who it is for

It suits learners, educators, and others looking for free textbooks across multiple subjects, ages, and languages. It may also interest translators and institutional partners, whom UOTI invites to participate.

What is good

  • Catalog lists 95 open textbooks.
  • Search by keyword or filter by age and language.
  • Textbook pages offer online reading and PDF downloads.
  • No account is needed to read or download.
  • Books may be adapted under their individual open licenses.

What to know first

  • Licenses vary by title; check each book’s terms.
  • The service may change or discontinue without prior notice.

Verdict

UOTI provides a searchable collection of free textbooks with age and language filters and PDF downloads. Check each title’s license before sharing or adapting it.

Universal Open Textbook Initiative plans and pricing

All plans
Free textbooks Free Textbooks are free to read, download, share, and adapt under each title’s open license uotinitiative.org · 5 Oct 2026

Compared on open educational resource platforms

Free plan
Yes
Open-license filter
No
Remix and adaptation
Yes
Download formats
PDF
Content review
Yes

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