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Turn your Kindle reading into a universal flashcard deck

Upload the notes, PDFs and slides you already have. DeckOwl turns them into flashcards with spaced repetition, and you study them in your browser on whatever device you carry.

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Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free · First set needs no signup · Creates flashcards in seconds

Why a Kindle needs a study app beside it

A universal flashcard app for Kindle readers needs to work with the files you already own, not only the books you buy. DeckOwl accepts PDFs, DOCX and PPTX files, plain notes and photos of pages, then builds flashcards you review with spaced repetition.

Works with notes and highlights you save yourself, plus PDFs and slides from class
Spaced repetition schedules reviews based on what you recall
Free plan includes 3 generations per month and browser study
Paid plans add PDF, DOCX, Anki and CSV export for use elsewhere

Example Kindle reading and study flashcards

Which Kindle feature saves words you look up so you can review them later?Vocabulary Builder, which keeps a list of looked-up words you can practice. It helps because you review words in the context where you met them.

Where does a Kindle store your highlights and notes as a plain text file?In a file called My Clippings.txt in the documents folder, which you can open in any text editor. It lets you copy highlights into a study deck.

Which file types can you send to a Kindle through Send to Kindle?Formats such as PDF, DOCX and EPUB, among others. It is useful for reading your own study material on the device.

What is spaced repetition?A review method that shows each card again at longer intervals as you recall it correctly. It works because memory strengthens when you retrieve information just before forgetting it.

What does the X-Ray feature show in a Kindle book?It lists characters, terms and topics that appear in the book, with links to where they occur. It helps you track names and ideas while you read.

Generate the full set

Built from your own material

Upload PDFs, DOCX, PPTX, plain text or photos of pages. The cards come from your files, not a generic deck.

Spaced repetition

Cards you miss come back sooner and cards you know fade out, so review time goes to what you are about to forget.

Study in the browser

The free plan lets you study in any browser with no export needed. Paid plans add PDF, DOCX, Anki and CSV export.

How it works

Upload your notes

Add a PDF, DOCX, slide deck, text file or a photo of a page. Text recognition reads images too.

Review the flashcards

Check the generated cards, edit anything that is off, and keep the ones that test what matters.

Study on a schedule

Open the deck in your browser and let spaced repetition decide which cards come up next.

Kindle is built for reading, so keep it for the text and move the studying to a device with a full browser. Copy your highlights or class notes into a text file, upload it, and review the cards on a phone or laptop. E-ink browsers are limited, so test the study view on your own device before you rely on it.

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Frequently asked questions

How should I turn Kindle reading into flashcards?

Copy the passages or highlights you want to remember into a text file, or upload a PDF of your own study notes. Keep each card to one fact so recall stays focused.

How many flashcards should I study in one session?

Start with a set you can finish in one sitting, then add more once you can recall the first batch. Smaller sessions done daily tend to stick better than long cramming runs.

Can I study DeckOwl cards on my Kindle?

The free plan studies in the browser, so it depends on whether your Kindle's browser loads the app well. For the full study experience, use a phone or laptop.

Do I have to pay to export my flashcards?

Yes. Export to PDF, DOCX, Anki and CSV is included in Plus at $39/year or $7.99/month, and the free plan covers browser study only.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.