Kioku pairs SuperMemo-style incremental reading with modern FSRS-6 scheduling. Read a long article in passes and make cards from the parts worth keeping. The schedule brings each one back until it sticks. It all runs offline. Your collections are local files you own: Kioku never uploads them, and you can export them at any time.
Already use Anki? Import your decks in one click →
Spaced repetition shows a card right before you would forget it.
How well did you recall?
Import any article or PDF, read it in passes, and extract what matters into cards as you go. The rest comes back tomorrow, so you do not have to finish in one sitting.
The modern spaced-repetition algorithm schedules every card for the moment just before you would forget it. Once you have enough reviews on record, you can refit its parameters to your own review history.
Kioku has no account, no cloud, and no telemetry unless you turn it on in Settings. Everything lives in a local file you own, and you can export or back it up whenever you like.
Import your .apkg
in one click. Cards, notes, and media all come across, and each
card's Anki interval and ease carry over into FSRS, so the ones
you already know do not start over from zero.
Paste a URL, drop in a PDF, or bring your Anki decks across.
Highlight as you read and turn passages into cloze and question cards, right in context.
Rate each card Again, Hard, Good, or Easy. FSRS sets the next date from your answer, and the gap grows each time you get it right.
Kioku is built for people who want to own what they learn. It runs fully offline, stores everything locally, and never asks for an account. The ink stays on your paper.