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Turn any biology chapter into flashcards you can study from

Upload the PDFs, slides, notes or page photos from your biology course and get flashcards with spaced repetition, built from your own material.

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

Biology flashcards from the material you already have

If your course uses Biology Now, you probably already have chapter PDFs, slide decks and lecture notes. DeckOwl reads those files and produces Quizlet-style biology flashcards with spaced repetition, so you study from your own course material instead of a generic set.

Flashcards are written from the text you upload, not from a fixed bank of terms.
Spaced repetition schedules reviews so harder cards come back sooner.
Photos of printed pages are read with text recognition before cards are made.
Export to Anki and CSV is available on Plus, so cards can move into other study tools.

Example biology flashcards for a cell biology unit

Which organelle is the site of the Krebs cycle in aerobic respiration?The mitochondrial matrix, because the cycle's reactions take place there.

What is the role of ribosomes in a cell?They build proteins by translating mRNA sequences into amino acid chains.

Which phase of mitosis lines chromosomes up along the cell's equator?Metaphase, because the chromosomes align at the metaphase plate before they separate.

What is the net ATP yield of glycolysis per glucose molecule?2 ATP, because 4 are produced and 2 are used in the early steps.

What does the Hardy-Weinberg principle predict about a population?Allele and genotype frequencies stay constant from generation to generation when no evolutionary forces act on it.

Generate the full set

Built from your course files

Upload a PDF, DOCX, PPTX, plain text notes or a photo of a page, and get flashcards that match what your class actually covers.

Spaced repetition

Cards you miss come back more often, so review time goes to the terms you are still getting wrong.

Study anywhere

The free plan lets you study in the browser. Plus adds exports to Anki, PDF, DOCX and CSV.

How it works

Upload your material

Add a chapter PDF, lecture slides, typed notes or a photo of a printed page.

Generate flashcards

DeckOwl reads the text and writes question-and-answer cards for key terms, processes and structures.

Study with spacing

Review in the browser and let spaced repetition bring back the cards you find hardest.

Upload a PDF, DOCX, PPTX, plain text file or a photo of a printed page. Photos are read with text recognition, so you can work from a page you have in hand without retyping it.

The free plan includes 3 generations per month and browser study. Plus, at $39 a year or $7.99 a month, removes the generation limit and adds PDF, DOCX, Anki and CSV export.

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Frequently asked questions

How many flashcards should I make for a biology chapter?

Start with one card per key term, process or structure in the chapter. Cut any cards that repeat the same idea so review time goes to new material.

What is the best way to study biology terms with flashcards?

Say the answer out loud before you flip the card, and make cards for how processes connect, such as how glycolysis feeds into the Krebs cycle. Spaced repetition then brings back the cards you miss most often.

Can I export my biology flashcards to Anki?

Yes, export to Anki is included in the Plus plan, which costs $39 a year or $7.99 a month. The free plan lets you study in the browser but does not include exports.

Is there a free plan?

Yes, the free plan includes 3 generations per month and browser study, and you do not need a credit card to start. Students get 40% off with a school email.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.