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Turn your notes into flashcards quickly, with AI

Upload a PDF, slide deck, set of notes or a photo of a page. DeckOwl builds flashcards you can review 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 account · 3 sets a month · Creates flashcards in seconds

Why a quick flashcard maker beats copying notes by hand

Typing a 30-page chapter into a blank card deck takes longer than the reading itself. A quick flashcard maker reads your own material and proposes the cards, so you spend your time checking and studying instead of transcribing.

Turns PDFs, slides, notes and page photos into flashcards
Schedules reviews with spaced repetition
Free plan includes 3 generations per month
Plus adds unlimited generations and Anki or CSV export

Example acids and bases flashcards

What is the pH of a neutral solution at 25°C?7. Pure water has equal hydrogen and hydroxide ion concentrations at this temperature.

What is a Brønsted-Lowry acid?A proton (H+) donor.

What is the conjugate base of HCl?Cl⁻, the chloride ion left after HCl donates a proton.

What is a strong base?A base that dissociates completely in water, such as NaOH or KOH.

What does a buffer do?It resists large pH changes when small amounts of acid or base are added, and it is made from a weak acid and its conjugate base.

Generate the full set

Reads your own files

Accepts PDF, DOCX, PPTX, plain text and images. Photos of pages are read with text recognition.

Spaced repetition built in

Cards come back at the intervals that help you remember them, so you spend less time rereading.

Study anywhere

Review in the browser on the free plan. Paid plans add PDF, DOCX, Anki and CSV export.

How it works

Upload your material

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

Generate your cards

DeckOwl pulls out terms, definitions and key facts and turns them into flashcards.

Review on a schedule

Study the cards in short sessions, and the spaced repetition system brings back the ones you miss.

Good cards come from your course, not a generic list. Because the cards are built from the slides or notes you already have, the terms match your instructor's wording. You can edit any card before you start reviewing.

Quick does not have to mean shallow. Start with the core definitions, then add the worked examples and exceptions as you go, and let spaced repetition decide which cards need more attention.

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Frequently asked questions

How many flashcards should I make for an acids and bases unit?

Aim for one card per definition, formula or named example, which usually lands between 25 and 40 for a single chapter. Split larger topics into sets of 15 to 20 so each session stays focused.

How do I study acid-base chemistry with flashcards?

Start with the definitions of Arrhenius, Brønsted-Lowry and Lewis acids and bases, then move on to pH and conjugate pairs. Short daily reviews work better than one long session before an exam.

Can I export my flashcards to Anki?

Yes, but export is a paid feature. Plus includes PDF, DOCX, Anki and CSV export for $99.90/year or $9.99/month, and the free plan lets you study in the browser.

Does DeckOwl work with photos of my notes?

Yes, photos of pages are read with text recognition. The free plan includes 3 generations per month and needs no credit card to start.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.