AI flashcard maker

Make flashcards from your notes, without typing a single card

Upload a PDF, slides or a lecture recording. Heyblocks writes the cards, schedules the reviews and reminds you when they are due.

Create flashcards for free Try the demo

Free to start. No credit card. Runs in your browser.

Try it: this is how you study in Heyblocks

Pick a sample script, generate the cards and rate each one. The demo uses prepared sample cards. In the app they are written from your own material.

heyblocks.app Demo with sample content

Step 1 · Pick a source

cell-biology-week-7.pdf Cellular respiration converts glucose into ATP in three linked stages. Glycolysis runs in the cytoplasm and nets 2 ATP per glucose. The Krebs cycle runs in the mitochondrial matrix and loads the carriers NADH and FADH₂. The electron transport chain on the inner membrane produces most of the ATP. Oxygen is the final electron acceptor; without it the chain backs up and the cell switches to fermentation. Where does glycolysis take place?In the cytoplasm. Which stage makes the most ATP?The electron transport chain. What do NADH and FADH₂ carry?Electrons. What is the final electron acceptor?Oxygen.
marketing-lecture-3.pdf The marketing mix describes four levers a company controls: product, price, place and promotion, known as the 4 Ps. Price is the only lever that generates revenue directly; the other three create costs. Penetration pricing enters a market with a low price to win share quickly. Skimming starts with a high price and lowers it over time. What are the 4 Ps?Product, price, place, promotion. Which P brings in revenue directly?Price. What is penetration pricing?Starting low to win market share. What is skimming?Starting high, then lowering the price.
weimar-republic-notes.pdf The Weimar Republic was proclaimed on 9 November 1918 and received its constitution in August 1919. Article 48 allowed the Reich President to govern by emergency decree. Hyperinflation peaked in 1923 and ended with the introduction of the Rentenmark. The republic ended when Hitler was appointed Reich Chancellor on 30 January 1933. When was the Weimar Republic proclaimed?9 November 1918. What did Article 48 allow?Rule by emergency decree. What ended the 1923 hyperinflation?The Rentenmark. When did the republic end?30 January 1933.
PDF, Word, audio, video, images
Sources you can upload
Spaced repetition
Built in, based on FSRS
Anki export
Optional, as an .apkg file

How it works

From script to study session in three steps

STEP 01

Upload your material

A PDF, a Word document, a lecture recording, a video, a photo of your notes or plain text. Several sources can go into one note.

STEP 02

Get your cards

Heyblocks reads the whole source and writes question-and-answer cards from it. Edit any card, add your own or delete the ones you do not need.

STEP 03

Study on schedule

Rate each card from Again to Easy. The scheduler brings it back right before you would forget it, and an optional email tells you when cards are due.

Why digital flashcards

Spend your time learning, not copying

No typing

A full deck from your lecture slides in minutes, instead of an evening spent copying definitions onto cards.

Built from your material

The cards come from your script, so they cover what your exam covers and use your lecturer's terms.

Reviews planned for you

Spaced repetition with FSRS decides when each card is due. You open the deck and study what is on the list.

A quiz from the same source

Turn the same material into a quiz and a summary to check whether you really understood it.

Phone and laptop

Runs in the browser with nothing to install. Create the deck on your laptop, review it on the bus.

Your cards stay yours

Export any deck as an Anki .apkg file whenever you like. Nothing is locked in.

FAQ

Questions about making flashcards

Upload the PDF and generate a Flashcards tab. Heyblocks reads the whole document and writes question-and-answer cards from it. You can study them right away or export the deck to Anki.

You can start for free without a credit card. New accounts get starting credit to try it on real material. Paid plans exist for heavier use.

No. Heyblocks has its own study mode with spaced repetition, the one you can try in the demo above. If you already use Anki, you can export any deck as an .apkg file.

Yes. Edit any card, add your own and delete the ones you do not need. The generated deck is a starting point, not a fixed result.

PDF and Word documents, audio and video recordings, images and plain text files. You can combine several sources in one note before generating the cards.

Heyblocks is a web app. It runs in the browser on your phone, tablet and computer, so there is nothing to install. You need a free account so your decks and progress are saved.

Related workflows

More ways to turn sources into study material

Lecture recording to study notes Video to study notes Research notes from sources

Your next exam is one deck away

Upload your script and study the first cards today.

Create flashcards for free