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A flashcard maker app that runs in your browser, nothing to download

Upload a PDF, slide deck, set of notes or a photo of a page, and get flashcards with spaced repetition built in. No installer and no credit card to start.

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 account · 3 sets a month · Creates flashcards in seconds

Why a browser-based flashcard maker beats a download

Most students who go looking for a flashcard maker app download want one thing: a faster way to turn lecture slides into cards they can review. DeckOwl is a web app, so there is nothing to install. Open it in any modern browser, upload your material, and get flashcards with spaced repetition.

No installer, so it works on a school or shared computer
Cards are built from your own PDFs, slides, notes and photos
Spaced repetition schedules reviews for you
Students get 40% off with a school email

Example cell biology flashcards (no download needed)

What organelle produces most of a cell's ATP?The mitochondrion, through cellular respiration.

What is the function of the Golgi apparatus?It modifies, sorts and packages proteins and lipids for transport.

What is the difference between osmosis and diffusion?Osmosis is the movement of water across a semipermeable membrane; diffusion is the net movement of any solute down its concentration gradient.

Which phase of mitosis separates sister chromatids?Anaphase, when spindle fibers pull sister chromatids toward opposite poles.

Which way does the hydrophilic head of a phospholipid face?Outward, toward the watery environments inside and outside the cell.

Generate the full set

Works from any PDF, slide or note

Upload PDF, DOCX, PPTX, plain text or images. Photos of pages are read with text recognition.

Spaced repetition built in

Cards you miss come back sooner, and cards you know fade into longer intervals.

Export when you need to

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

How it works

Upload your material

Drop in lecture slides, a chapter PDF, typed notes or a photo of a page.

Review the generated cards

Check the flashcards DeckOwl creates and edit any that need fixing.

Study in the browser

Start a spaced repetition session right away. The free plan includes 3 generations per month.

Because the cards come from your own files, the deck matches what your instructor actually covers. The free plan lets you study in the browser, and Plus adds unlimited generations plus exports to PDF, DOCX, Anki and CSV for $99.90 a year or $9.99 a month.

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Frequently asked questions

Do I need to download anything to use DeckOwl?

No. The free plan runs in the browser, so you can upload material and study without installing software. Exports to PDF, DOCX, Anki and CSV are paid features on Plus.

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

Write one idea per card, so a single chapter may need anywhere from a dozen to several dozen cards. Focus on terms, functions and processes you will be tested on rather than every sentence in the reading.

Why does spaced repetition help with memorizing terms?

Reviewing a card just before you would forget it strengthens memory more than cramming the same card many times in one sitting. Spaced repetition automates that timing so you review the right cards on the right days.

Can I export my flashcards to Anki?

Yes, Anki export is included in the Plus plan at $99.90 a year or $9.99 a month. The free plan lets you study in the browser but does not include exports.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.