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Create printable flash cards from your own class notes

Upload a PDF, slides, notes or a photo of a page and get flashcards with spaced repetition that you can export and print.

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Making printable flash cards from your own material

Most ready-made printable sets are generic, so the fastest route is making printable flash cards from the material you actually have to learn, such as lecture slides, a textbook chapter or handwritten notes.

  • Upload PDFs, DOCX, PPTX, notes or photos of pages
  • Cards come from your own material, not a generic template
  • Spaced repetition for studying in the browser
  • PDF export to print on the Plus plan; the free plan has no exports
Example renewable energy sources flashcards
What does a photovoltaic cell convert into electricity?Sunlight. Photovoltaic cells use semiconductor materials to turn light directly into electrical current.
What is the main limitation of wind power?Output is variable. Wind speed changes constantly, so turbines do not produce power at a steady level.
What is geothermal energy?Heat from inside the Earth. It is drawn from underground reservoirs of steam or hot water to generate power or heat buildings.
What is hydropower's main environmental trade-off?Dams change river ecosystems · they can block fish migration · they can flood land and alter water flow.
What is biomass energy?Energy from organic material · wood, crop residues, and waste are burned or converted into fuel · it is renewable only when replanted or replenished.
Generate the full set

Built from your material

Upload PDF, DOCX, PPTX, plain text or photos of pages, and the flashcards come from what you actually need to learn.

Spaced repetition

Cards are scheduled for review over time, so you spend less effort on what you already know.

PDF export to print

On the Plus plan, export your flashcard set as a PDF and print it for studying away from the screen.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, text file or photos of your pages. Text recognition reads the images.

Review the generated cards

Check each card, edit wording or remove anything that does not belong before you print.

Export and print

Export the set as a PDF on Plus and print it. The free plan lets you study in the browser instead.

DeckOwl reads PDFs, DOCX and PPTX files, plain text and photos of pages, then produces flashcards with spaced repetition. Printing requires PDF export, which is included on the Plus plan at $39/year or $7.99/month.

Keep each card to one fact, and split long lists into several cards. A card that asks one clear question is easier to review on paper and easier to learn from.

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Frequently asked questions

How many flashcards should I make for a renewable energy unit?

Keep one fact per card and split long lists into several cards. A unit's worth of notes usually fits into one set, and you can add more sets for later topics.

What makes a good flashcard for studying energy sources?

Put one concept or question on the front and a short, specific answer on the back. Cards that compare sources, such as how wind and solar output vary, test understanding better than plain definitions.

Can I print DeckOwl flashcards?

Yes, on the Plus plan ($39/year or $7.99/month) you can export to PDF and print. The free plan lets you study in the browser but does not include exports.

Do I need a credit card to try it?

No. You can start on the free plan with 3 generations per month and no credit card. Students get 40% off with a school email.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.