Flash
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spaced-repetition flashcards, run by your AI

Claude’s favorite
flashcards.

Your AI makes the flashcards, Flash makes sure you remember them. Tell Claude, ChatGPT, Grok, Mistral, or Gemini what you want to learn. It writes the cards, Flash schedules the reviews, and you just remember more.

Every card is scheduled by FSRS, the modern spaced-repetition algorithm that models your memory and shows you each card right before you'd forget it: the fewest reviews for the most retention.

Get started Free. No card required.
Cardiology card 4 of 12
studying by voice
1/3
claude
Next up: what is tachycardia?
“um… I think it's when your heart beats too fast? but I'm not sure”
claude
That's correct. A resting heart rate over 100 bpm.
good next review in 3 days

How it works

01
Tell your AI what you're learning
Paste notes, a chapter, a menu, or just describe it. Claude, ChatGPT, Grok, Mistral, or Gemini turns it into flashcards for you. What makes an AI-made card worth keeping.
02
It handles the hard part
Every card is scheduled with spaced repetition. You see it again right before you'd forget it. No settings to learn.
03
You just study
A few minutes a day on the web. Or out loud, with your AI asking the questions and grading your answers.

Works with your AI

Claude, ChatGPT, Grok, Mistral and Gemini all make your cards and study them with you in chat, and Claude, ChatGPT and Grok can quiz you out loud in their voice modes.

Any assistant that speaks MCP can run Flash in chat. Set yours up.

Nothing gets lost.

No more losing important questions and context right when your exam is coming up. Everything you study with your AI lands in Flash: secure, synced, and yours forever.

No clutter. Just the next card.

Built for focus: one card, four buttons, and a scheduler that gets the most out of every minute you give it.

Spanish 3 due
la biblioteca
space

3 left

Your Anki decks import whole.

Cloze deletions and hints, images, audio, LaTeX, typed answers, nested decks: the whole toolbox survives the trip, and every card comes out wearing Flash's clean look. How Flash compares to Anki.

Imported deck 3 due
What are the four chambers of the heart?
space

3 left

Pricing

Free
$0
  • Unlimited cards and decks
  • Full spaced-repetition scheduler
  • Study on the web and through ChatGPT, Claude, Grok, Mistral or Gemini, which make your cards
  • Import and export
Apps for iPhone and Android are coming soon.
Self-host
$0 · open source
  • No plan at all
  • The whole server on your own hardware
  • One binary, one SQLite file, AGPL-3.0
  • Accounts you create yourself; no signup, no billing
How it works.
GitHub
Start remembering things.
Works with Claude, ChatGPT, Grok, Mistral, Gemini, and any agent that speaks MCP.
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