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Turn your notes into flashcards with an AI maker in your browser

DeckOwl is a web app you open in your browser, not an installed extension. Upload PDFs, DOCX, PPTX, notes or photos of pages and get flashcards with spaced repetition.

Create flashcards nowFree · No credit card required

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

Making flashcards from your own notes

Many students searching for a flashcard maker extension want to turn lecture slides into cards without copying terms by hand. DeckOwl takes your own material as the source, so the cards match what your instructor actually covered.

Works with PDF, DOCX, PPTX, plain text and photos of pages
Spaced repetition schedules reviews around what you forget
Free plan includes 3 generations per month and browser study
Students get 40% off with a school email

Example cell biology flashcards (cell structure unit)

What is the function of the mitochondria?It produces most of the cell's ATP through cellular respiration.

What organelle modifies, sorts and packages proteins?The Golgi apparatus packages proteins into vesicles for transport.

How do prokaryotic and eukaryotic cells differ?Eukaryotic cells have a membrane-bound nucleus and organelles, while prokaryotic cells lack both.

What does the rough endoplasmic reticulum do?Studded with ribosomes, it makes proteins destined for secretion or cell membranes.

What is osmosis?Diffusion of water across a selectively permeable membrane toward higher solute concentration.

Generate the full set

Cards from your own files

Upload a PDF, slide deck, Word file, plain-text notes or a photo of a page. Text in images is read with text recognition.

Spaced repetition built in

Cards come back at intervals based on how well you recall them, so you spend time on the ones you keep missing.

Study in the browser

Review your flashcards on any device with a browser. The free plan includes 3 generations per month with no credit card needed to start.

How it works

Upload your material

Add a PDF, DOCX, PPTX, text notes or images of pages from your course.

Generate flashcards

DeckOwl turns the key terms and ideas in your files into front-and-back cards you can edit.

Review on a schedule

Study the deck in your browser and let spaced repetition bring back the cards you are about to forget.

Good flashcards ask one specific question and have a short answer you can recall in a few seconds. Review the generated cards, cut any that are too broad, and add cards for anything you keep missing.

Plus adds unlimited generations and exports to PDF, DOCX, Anki and CSV. Pro adds a stronger AI model, bulk upload, and QTI 2.1 and Moodle XML export.

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Frequently asked questions

How many flashcards should I make for a cell biology chapter?

Aim for one idea per card, which often means 20 to 40 cards for a single chapter. Start with key terms and processes, then add cards for anything you miss on review.

What makes a good flashcard for studying biology?

Ask one specific question on the front and keep the answer short enough to recall in a few seconds. Avoid cards that ask you to recite whole paragraphs.

Is DeckOwl a browser extension?

DeckOwl is a web app you open in your browser. The free plan lets you study in the browser, while exports require a paid plan.

Can I export flashcards to Anki?

Yes, export to Anki is included on Plus, which costs $39 per year or $7.99 per month. The free plan does not include exports.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.