Flashcards, done right
Memorize anything with smart repetition.
Create decks, build multiple-choice or open-answer cards, and study in random sessions where what you miss comes back until you get it right.
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Features
Built for people who actually study.
Everything to turn material into memory — and nothing else.
Misses come back
Wrong cards return until you get them right.
Unlimited decks
Organize your studies by topic.
Multiple choice or text
Two card types for every way to remember.
Public or private
Share by link or keep it to yourself.
AI integration
Your AI builds the cards. You just study.
Ask Claude or ChatGPT — “create 50 cards on the French Revolution”, “build a Spanish deck” — and it fills your decks in Hackflow. No copy-paste.
- Works with Claude and ChatGPT
- Whole decks in a single ask
- Create, edit, and organize just by chatting
you + your AI
create 50 cards to practice my English
Done — 50 English cards in your deck ✓
analyze my mistakes and focus on my weak spots
I reviewed your history and added 12 cards on your weak spots ✓
chemistry-semester.pdf
create a deck for the chemistry test, based on the semester's material
I read the material and built 40 chemistry cards ✓
Start remembering what you study.
Free to start. Create your first deck in under a minute.