oBook
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Turn Your Books Into Audio With oBook

Import your PDF or EPUB books and listen with natural AI voices — while oBook tracks your progress and keeps your reading streak alive.
oBook app screen showing a book playing as AI-narrated audio

Where Reading Meets Intelligent Audio

Text-to-speech made natural and effortless. Import your PDF and EPUB books and convert them into lifelike audio with synchronized highlighting and adjustable playback speed — built for readers who want to listen on the commute, at the gym, or anywhere else.oBook reading screen with AI text-to-speech playback and highlighted text

Smart Reading Assistant Powered by AI

Change how you experience your books with oBook's AI text-to-speech engine. Listen to your PDF and EPUB library hands-free, bookmark the moments that matter, and watch your chapter and book progress add up as you build a reading streak.
Person wearing headphones listening to a book with oBook

Everything you need to build a reading habit

oBook playing a book aloud with AI text-to-speech

Hear what our users have to say

I listen to my textbooks during my commute. oBook's AI voices sound so natural I forget it's text-to-speech.

-Ryan B.

I'm learning Spanish, and listening to EPUB books in oBook has been great for picking up natural pronunciation and rhythm.

-Sarah C.

I listen to a chapter every time I go for a run. The streak tracker keeps me consistent — I haven't missed a day in three weeks.

-Marcus J.

I use it to get through my reading list without burning out. Picking up right where I left off makes it easy to fit in a few chapters anywhere.

-Aisha P.

I turned my EPUB backlog into audio and listen on my walk to work. It's the easiest way I've found to actually finish the books I buy.

-Daniel K.

Bookmarking key chapters while I listen makes it so easy to go back and revisit my favorite parts later.

-Lina M.

Really solid text-to-speech app — clean interface, lifelike AI voice, and it handles both my PDF and EPUB books without any issues.

-Omar H.

Frequently asked questions

Everything you need to know about oBook.

oBook is an AI-powered reading app that turns your PDF and EPUB books into natural-sounding audio. Import a book, choose an AI voice, and listen instead of only reading — while oBook keeps track of your progress and reading streak.