PDF in, cards out
Upload a list as a PDF. Paukbox detects lines shaped like “word = meaning”, strips headers and shows you everything for review before anything is saved.
Free up to 50 cards
Flashcards have worked for generations, which is exactly why we do not reinvent them. You write down vocabulary and terminology or import it from a PDF, practise a few minutes every day and keep what you learn. Everything runs in the browser on your phone, tablet and desktop.
Starting costs nothing. Unlimited cards are a one-time €2.
Upload a list as a PDF. Paukbox detects lines shaped like “word = meaning”, strips headers and shows you everything for review before anything is saved.
Have ChatGPT or another AI write a list in the “word = meaning” format and paste it right in, or hand it over as a PDF. The import takes care of the rest.
If a term appears twice in the list or already exists in your cards, the app asks which version should stay. Identical lines are merged quietly.
In the Leitner boxes, cards you know come up less often and cards that wobble come up more. The gaps grow from one day to three, seven and twenty-one. If you prefer free practice, switch to pure shuffle.
Every few cards, the app mixes in a matching quiz. You pair terms with meanings, check your answers and move on. That bit of variety makes things stick.
Your cards live in your account and not just in the browser. On a new device everything is right back, and a JSON export is included anyway.
Without repetition, new knowledge fades fast. A day later, more than half is often gone. The memory researcher Hermann Ebbinghaus described this forgetting curve back in 1885.
Flashcards place repetition exactly where it counts, which is shortly before you forget. Every review lifts the curve back up and flattens it. That is what the rhythm of 1, 3, 7 and 21 days is for.
Because you only reveal the answer after recalling it from memory, you also practise what exams actually test: remembering rather than recognising. Re-reading merely feels better.
The chart is schematic. Every yellow dot is a review that lifts the curve before forgetting takes over.
Email and password are all it takes. Starting costs nothing.
You import a PDF, paste a list or type by hand. Lists your AI wrote for you go straight in as well. Categories keep things tidy.
You reveal, rate honestly and move on. The app remembers what is due, on your phone as well as on tablet and desktop.
You pay once and use Paukbox for good. There is no subscription and nothing to cancel.
0 €
2 € one-time
The first 50 cards are free, and you need no payment details to start. If you want more room, you pay a one-time €2 for unlimited cards. There is no subscription and nothing to cancel.
There are three ways. You upload a PDF with lines shaped like “word = meaning”, paste a list as text, or type cards by hand. Lists written for you by ChatGPT or another AI go in the same way in seconds. You always see a preview before anything is saved.
Every card sits in one of five boxes. Cards you know move up a box and appear less often, first after one day, then after three, seven and twenty-one days. Cards you miss fall back and appear more often. You automatically practise what wobbles instead of what already sticks.
Yes. Paukbox runs in the browser and adapts to phone, tablet and desktop. Your cards live in your account, so you can import at your desk and study on the go.
Yes. PDF files are read in your browser and never uploaded. You can export all cards as JSON at any time, and you can delete your account yourself in the settings, permanently and with all data.