Q&A
The classic format. Question on front, answer on back. Best for facts and definitions you need to recall in your own words.
What organelle is the powerhouse of the cell?
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Flashcards · The AskSia Generator
Flashcards that
build themselves.
Auto-generate a full spaced-repetition deck from any document, lecture, or YouTube video. Six card types — Q&A, cloze, image, definition, formula, sentence — and the FSRS algorithm reschedules every card to your forgetting curve. Free to start.
Generate a flashcard deck
~20s · 30–80 cards
▶ YouTube🎙 Podcast📰 Article📦 Anki .apkg📦 Quizlet CSV
FSRS · SM-2
Spaced repetition built in
Generate Deck
4.9 / 5 · 2M+ students · 240M+ cards reviewed this term
asksia.ai/tools/flashcard-maker
Flashcards
AP Bio · Cell Respiration deck
NEW 12
DUE 18
DONE 22
Card 22 of 52 · Day 3 streak
CLOZE
Bio Ch. 9 · p.214
Question
The Krebs cycle produces molecules of NADH per glucose.
Tap to reveal · Space
CLOZE
Bio Ch. 9 · p.214
Answer
3 NADH per pyruvate × 2 pyruvates = 6 total per glucose.
Got it · grade below
Again<1m
Hard6m
Good2d
Easy5d
~4.2 min left
FSRS
retention 92%
Quick Answer
What is AskSia Flashcard Generator?
AskSia Flashcard Generator auto-creates spaced-repetition flashcard sets from any input — PDFs, Word, PowerPoint, scanned handwriting, audio, video, YouTube, podcasts. It generates a mix of Q&A, cloze deletion, image, definition, formula, and sentence cards, all linked back to source pages. The built-in FSRS algorithm (the modern successor to SM-2) schedules every card to your individual forgetting curve. Cross-source merging lets you combine textbook + lecture cards in one deck. Free to start, on Web, iOS, Android.
~20s
to a 30–80 card deck
6
card types · auto-picked
FSRS
+30% over SM-2
92%
avg long-term retention
Six card types
Sia picks the right
card for every fact.
Definitions become definition cards, formulas become formula cards, diagrams become image cards. Quizlet/Anki force you to pick by hand — Sia auto-picks per fact.
Cloze deletion
Fill-in-the-blank. Active recall in context — keeps the surrounding sentence intact so you remember how the term is used.
The mitochondrion uses an electron transport chain to produce .
Image
Auto-extracted from your source — anatomy diagrams, circuit schematics, molecular structures. "Identify the labeled part."
Definition
Term on front, definition on back. Best for vocab-heavy subjects: bio, law, history, languages.
Aerobic respiration
Formula
Equation on front, derivation or use case on back. Math, physics, chem, econ. Sia preserves LaTeX so the formula renders cleanly.
PV = nRT
Sentence
Foreign-language vocab cards with native-speaker TTS audio. Front: sentence in target language. Back: translation + grammar note.
他正在学习西班牙语 🔊
Why AskSia Flashcards
Stop writing cards.
Start reviewing them.
The hardest part of Anki was always the deck-building. Sia generates the deck in 20 seconds — you just review.
Auto-built decks
Drop a textbook chapter, get a 30–80 card deck in 20 seconds. Sia picks the right card type for every fact — no manual sorting.
Generative
FSRS algorithm built in
The modern successor to SM-2 — up to 30% more efficient at scheduling reviews to your individual forgetting curve. Switch to classic SM-2 anytime.
FSRS · SM-2
Source-grounded cards
Every card links back to its exact PDF page or video timestamp. Doubt an answer? Click the card — read the original source.
Page · timestamp
Six card types, auto-picked
Q&A, cloze, image, definition, formula, sentence. Sia picks the right format per fact. Convert between types with one tap.
6 formats
Cross-source merging
Up to 100 documents in one deck. Sia merges duplicate facts across textbook + lecture + handwritten notes — every card cites all of its sources.
Multi-source
Anki + Quizlet compatible
Import your old .apkg and .csv decks; export AskSia decks back to either format. No vendor lock-in.
No lock-in
How It Works
From source to
streak — in three steps.
Step 01
Drop any source
PDF, Word, PPT, audio, video, YouTube. Sia generates the deck in 20 seconds.
Step 02
Sia builds your deck
52 cards: 18 Q&A, 14 cloze, 8 definition, 7 image, 5 formula. Auto-picked per fact.
Step 03
Review & grade
Tap Again / Hard / Good / Easy after each card. FSRS reschedules every card to your forgetting curve.
Available On
Build at your desk.
Review on the bus.
🖥 Web App
Full deck builder
Bulk-edit cards, swap card types, regenerate from a different source, import .apkg / .csv decks, export anywhere.
Drag-drop multi-format upload
Bulk-edit, retag, archive cards
Anki .apkg import/export · Quizlet CSV
Keyboard shortcuts: Space flip · 1/2/3/4 grade
Try on Web →
📱 Mobile App
The review queue, in your pocket
Open the app on the bus, run through today's cards in 5 minutes. Reviews sync across devices the moment you reconnect.
Swipe to grade · haptic feedback
Offline review · syncs when online
Push reminders for daily review
TTS audio for sentence/language cards
Get the App →
Use Cases
Best for the
memorization-heavy stuff.
Med-school & pre-med
Anatomy, biochem, pharmacology — endless terminology. Image cards with auto-extracted diagrams from your textbook.
MCAT · USMLE
Language learning
Sentence cards with native-speaker TTS. Cloze deletions for grammar patterns. Drop a podcast, get vocab cards in seconds.
EN · ZH · JA · KO · ES
Law school
Case names → holdings, statutes → elements, doctrines → tests. Cloze cards force you to recall the rule, not just recognize it.
Bar prep · 1L outlines
SAT / ACT / AP / IB
Drop a practice book or past papers — Sia builds an exam-style deck and prioritizes high-frequency facts.
Test prep
Math & physics formulas
Formula cards with LaTeX. Front: equation. Back: derivation, units, when to use it. The cards solve themselves.
Formula bank
History dates & figures
Hundreds of dates, names, places. Definition + Q&A cards drilled with FSRS so they stick before exam day.
AP Euro · APUSH · A-Level
Compare
AskSia vs. Quizlet,
Anki & Brainscape.
The hardest part of flashcards was always writing the cards. AskSia eliminates that step.
| Feature | AskSia | Quizlet | Anki |
|---|---|---|---|
| Auto-generate cards from study material | ✓ ~20s from any source | Manual | Manual |
| FSRS / SM-2 spaced repetition | ✓ FSRS default · SM-2 option | Basic SR (paid) | ✓ SM-2 default |
| Audio + video + YouTube ingest | ✓ Auto-transcribe | No | No |
| Scanned handwriting OCR | ✓ Native | No | No |
| Source-linked cards (page / timestamp) | ✓ Click to verify | No | Manual |
| Image cards from auto-extracted diagrams | ✓ Auto-cropped | Manual upload | Manual upload |
| Cloze deletion auto-generation | ✓ Picks the right blank | Manual | Manual w/ syntax |
| Cross-source deck merging | ✓ 100 files in one deck | Manual combine | Manual combine |
| Anki .apkg / Quizlet CSV import | ✓ Both formats | No (locks in) | ✓ .apkg native |
| One-tap to Sia Note / Visual Map / Quiz | ✓ Generator family | No | No |
| Free plan | ✓ Daily generation | Limited Plus features | ✓ Open-source |
FAQ
Frequently asked
questions.
What is AskSia Flashcard Generator?
AskSia Flashcard Generator auto-creates spaced-repetition flashcard sets from any input — PDFs, Word, PowerPoint, scanned handwriting, audio, video, YouTube, podcasts. It generates a mix of Q&A, cloze deletion, image, definition, formula, and sentence cards, all linked back to source pages, and uses the FSRS algorithm to schedule reviews based on your individual forgetting curve.
How is AskSia different from Quizlet or Anki?
Three big differences. (1) Auto-generation: Quizlet and Anki are blank decks — you write every card by hand. AskSia generates the whole deck from your actual study materials in 20 seconds. (2) Card variety: AskSia auto-picks the right format for each fact — definitions become definition cards, formulas become formula cards, diagrams become image cards. Quizlet/Anki force you to set this up manually. (3) Source-grounded: every AskSia card links back to its exact source page or video timestamp. Quizlet decks have no provenance.
What spaced-repetition algorithm does AskSia use?
AskSia uses FSRS (Free Spaced Repetition Scheduler) by default — the modern open-source successor to SM-2 (the Anki classic algorithm). FSRS adapts the review interval to your individual forgetting curve and is up to 30% more efficient than SM-2 in published benchmarks. You can switch to classic SM-2 in settings if you prefer Anki-style behavior.
What card types does AskSia support?
Six card types, auto-picked per fact: (1) Q&A — classic question / answer; (2) Cloze deletion — fill in the blank; (3) Image — show a diagram, identify the part; (4) Definition — term on front, definition on back; (5) Formula — equation on front, derivation on back; (6) Sentence — language-vocab cards with native-speaker TTS audio. You can convert between types with one tap.
Can I generate flashcards from a YouTube video or lecture?
Yes. Paste a YouTube URL or drop in a lecture audio/video file. Sia transcribes the audio, identifies key facts and concepts, and auto-generates flashcards with timestamps preserved on every card so you can jump back to the exact moment in the video.
Can I import an existing Anki or Quizlet deck?
Yes. Import .apkg (Anki) and .csv (Quizlet export) files. Sia preserves your existing review schedule and converts card formats automatically. You can also export AskSia decks back to .apkg or .csv at any time — no vendor lock-in.
How does cross-source deck merging work?
Upload up to 100 documents in one session — a 200-page textbook PDF + lecture slides + a YouTube playlist + handwritten notes — and Sia builds one unified deck with cards from all sources. Duplicate facts are merged, and each card shows citation badges for every source it draws from.
Are the flashcards available offline?
Yes. The mobile app caches your decks and review queue locally, so you can review on the bus, on a flight, or anywhere without service. Reviews sync back to Web the moment you reconnect.
Can I edit the auto-generated cards?
Yes. Tap any card to edit text, swap card type, change the image, add an audio clip, or split into multiple cards. You can also bulk-edit (rename, retag, archive) across the whole deck.
Is AskSia available on mobile?
Yes — Web, iOS, Android. The mobile app is optimized for the daily review queue: open it on the bus and run through today's cards in 5 minutes. Reviews sync immediately across devices.
How much does it cost?
Free to start, no credit card. Free accounts include daily card generation and unlimited review on existing decks. AskSia Pro and Super unlock unlimited generation, image-card extraction from diagrams, native-speaker TTS audio for language cards, and priority generation.
Is my data private?
Yes. Uploaded files and generated decks are encrypted in transit and at rest, never sold, and not used to train AI models without explicit opt-in. Decks are private to your account by default.
The Generator Family
Same source.
Four ways to study.
Sia Note →
Methodology-driven note · Cornell + Feynman + Zettel + active recall
Visual Map →
The whole subject as a navigable concept tree
YOU ARE HERE
Flashcards
Auto-generated · 6 card types · FSRS spaced repetition
Quiz →
Adaptive · MC + free-response · exam-grade
Start Today
Stop building decks.
Start running streaks.
Drop a textbook, a YouTube video, or a lecture and Sia builds you a 30–80 card deck in 20 seconds — six card types, FSRS spaced repetition, source-linked, free to start.