Modern, interactive textbooks. Free for students.Better than what the publishers charge you for.

Free for students. No access codes, no paywalls, no nonsense.

Physical editions available at cost — not at a margin.

Reorder chapters, add your own content, remove what you don't teach.

Every textbook comes with a full homework suite on edfinity.com — auto-graded, assignable, and already mapped to the reading.

Gallery of sample sections

Open source alternative to Blitzer

Open source alternative to Stewart

Open source alternative to Hughes-Hallett

We create tailored course materials in days. Authors, departments, and institutions welcome.

Write to us → hello@edfinity.com