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Turn your notes into Anki-style flashcards you study in a browser

Upload PDFs, slides, notes or photos of pages and get flashcards you can review right in your browser, with spaced repetition scheduling built in.

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Free · First set needs no signup · Creates flashcards in seconds

Anki-style flashcards without installing anything

Studying from a library laptop often means no admin rights to install desktop software, so browser-based Anki flashcards are a practical option. DeckOwl creates flashcards from your own PDFs, slides, notes or photos of pages, and the free plan lets you study them right in the browser.

  • Study in the browser on the free plan with no install
  • Upload PDF, DOCX, PPTX, notes or photos of pages
  • Spaced repetition schedules reviews before you forget
  • Export to Anki, PDF, DOCX or CSV on the Plus plan
Example web browser flashcards for computer science
What does DNS do when you type a web address?It translates the domain name into an IP address so the browser can connect to the correct server.
What is a cookie?A small piece of data a server sends that the browser stores and returns on later requests, often to keep a session active.
What does the rendering engine do?It combines the DOM and CSS into a render tree, then calculates layout and paints the page on screen.
What does HTTPS add to HTTP?TLS encryption, which protects data in transit and lets the browser verify the server's identity with a certificate.
What does the same-origin policy restrict?Scripts from one origin (scheme, host and port) from reading responses from a different origin.
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Study in the browser

The free plan runs entirely in your browser, so there is nothing to install on a school or library computer.

Built from your material

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

Spaced repetition

Reviews are scheduled for the moment you are likely to forget, so you spend time on the cards that need it.

How it works

Upload your material

Add a lecture deck, a chapter PDF, or photos of your notes.

Generate flashcards

DeckOwl turns the content into question and answer cards you can edit.

Study in the browser

Review cards on a schedule that adapts to what you remember.

Each set of cards uses spaced repetition, which spaces reviews out so you see a card again just before you would forget it. Free accounts get 3 generations per month. Exporting to Anki, along with PDF, DOCX and CSV, is part of the Plus plan at $39/year or $7.99/month.

Students with a school email get 40% off, and no credit card is needed to start.

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Frequently asked questions

How do I study how web browsers work with flashcards?

Upload a lecture slide or article on topics like DNS lookups, rendering and cookies. Keep each card focused on one idea, such as what a cookie stores, so reviews stay short and specific.

What should a web browser flashcard cover?

Focus on one concept per card, such as the steps of a page load or what the same-origin policy blocks. Short, specific answers are easier to recall under spaced repetition.

Can I export these cards to Anki?

Yes, exporting to Anki is part of the Plus plan at $39/year or $7.99/month. The free plan lets you study the cards in the browser without exports.

Do I need to install anything to start?

No. The free plan runs in your browser, and you can start without a credit card.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.