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Turn your Kindle highlights into flashcards with AI

Kindle does not build flashcards itself, but your highlights and notes can become a study deck in minutes. Paste them in or photograph pages, and DeckOwl turns them into cards with spaced repetition.

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Why Kindle highlights make good flashcards

Learning how to make flashcards in the Kindle app usually means working around one gap: the app stores highlights and vocabulary lookups, but it does not turn them into cards you can quiz yourself with. Kindle books are usually DRM-protected, so the practical route is to move the text you already marked into your own study material.

Copy highlights from your Kindle notebook as plain text, one passage per line.
Photograph printed pages or screenshots and let text recognition read them.
Write each card as a question, with one idea on the back.
Review the deck with spaced repetition rather than rereading the chapter.

Example cards from Kindle highlights

Where do Kindle highlights appear as a single list?The Kindle notebook at read.amazon.com/notebook, where highlights and notes are grouped by book.

What makes a good flashcard front?A specific question that can be answered from memory, such as What does the highlighted term mean?, rather than a vague topic label.

Why use a question on the front of a card?It forces active recall, so you retrieve the answer instead of recognizing it on the page.

What should a card back contain?The core answer in a sentence or two, plus the passage reference if you need to check the source.

How often should you review a flashcard deck?Use spaced repetition so cards you struggle with return sooner and well-known cards come back less often.

Generate the full set

Works from what you can export

Copy highlights from your Kindle notes into a text file, or upload photos of pages. Text recognition reads the images.

Spaced repetition built in

Cards come back at growing intervals, so you review what you are about to forget.

Exports when you need them

Plus adds PDF, DOCX, Anki and CSV export, so your deck can move to other apps.

How it works

Collect your highlights

Open your Kindle notebook in a browser and copy the passages you want to study.

Upload and generate

Paste the text into a file or upload photos, then generate flashcards from your material.

Review on a schedule

Study the deck and let spaced repetition bring back the cards you miss.

Highlights work well as a source because you already picked out the important lines. Turning each one into a question on the front and the key idea on the back forces recall instead of recognition, which is what makes review effective.

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Frequently asked questions

Can the Kindle app make flashcards by itself?

The Kindle app does not build a full flashcard deck from your highlights, so you need to move the text into a study tool. DeckOwl can generate cards from text you paste or images you upload.

How many flashcards should I make from one Kindle chapter?

Aim for one idea per card, which often means somewhere between 10 and 20 for a dense chapter. Fewer, clearer cards are easier to review than long ones.

Can I upload a Kindle book file directly?

Kindle books are usually DRM-protected, so copy the highlights or photograph the pages you want instead. Your own notes and PDFs can be uploaded directly.

Is exporting to Anki included for free?

No. Export to PDF, DOCX, Anki and CSV is part of Plus, which costs $99.90/year or $9.99/month. The free plan includes three generations per month and studying in the browser.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.