A little companion. A world of stories.
Listen, follow along, and let the pictures speak.
Meet Koby, your reading and learning companion.
Right in your browser. No account needed to start.
ONE BOOK. SO MANY POSSIBILITIES.
Some days you want to read.
Some days you'd rather listen.
There’s room for both here.
There was a whole world
waiting on the next page.
And so, the adventure began.
Turn your books into audio, follow the highlighted text, and settle into a pace that feels like you.
Hear AI descriptions of illustrations, charts, and comic pages alongside the words.
What surprised you
in this chapter?
Reflect with Study Mode questions and feedback, or explore a book in translation.
Illustrative previews. AI descriptions, translation, and Study Mode require sign-in and an internet connection.
A LITTLE COMPANION. A WHOLE CLASSROOM.
Meet Koby for Schools. Accessible reading for your classroom, with shared books, simple class links, and a space for each reader to grow.
Free school pilots · No installation needed
YOUR NEXT CHAPTER IS CLOSE
Open a DRM-free book you own, paste some text, or discover a public-domain read.
Choose a voice, adjust the pace, and follow along in a comfortable reading view.
Save a highlight, pause to reflect, or simply enjoy the next chapter.
A PLACE FOR EVERY READER
Begin for free. Choose more
when you’re ready.
KOBY FREE
Free
Make yourself at home with the essentials.
KOBY PRO
More room to read
For a library that follows you from device to device.
View current pricing and plan details in the app.
Reading together? Ask about a free Schools pilot
A FEW THINGS YOU MIGHT WONDER
No. Koby works in your browser with books and documents you already have. If you do have a Kobo, you can also import its books, highlights, and reading progress.
Koby supports DRM-free EPUB, PDF, MOBI/AZW3, FB2, Word, CBZ/CBR comics, HTML, TXT, and Markdown. EPUB and FB2 preserve chapters best; PDFs work best with selectable text. Koby does not remove DRM.
Yes. Open a sample or a book and read or listen with local voices without an account. Sign in for AI descriptions, translation, and Study Mode. Comics offer a signed-out preview; account limits apply beyond it. Cloud narration and library sync are Pro features.
Anyone who wants another way into a book. Listening, text highlighting, and image descriptions offer different ways to explore a story, including for blind and low-vision readers. Schools can use class links and teacher-shared books.
Basic local reading happens on your device. Cloud and AI features send the content they need to the relevant services. Read our privacy policy for details, or visit Koby for Schools for classroom-specific information.
A GOOD PLACE TO BEGIN