AI-POWERED FLASHCARDS

Generate smart flashcards from any PDF

Learnex (learnex.cc), the AI study platform for university students — skip manual card typing. Upload your course materials and instantly receive an active recall flashcard deck mapped directly to your syllabus.

Start Free with Your PDF →• Last updated: November 5, 2026
NEUROSCIENCE 201

Action Potential

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SPECIFICATIONS

Processing Limits & Performance Benchmarks

Max File Size

50 MB

Upload full multi-hundred slide presentations without manual splitting.

Cards Generated

20–100 / Upload

Covers all key definitions, formula invariants, and conceptual contrast pairs.

Supported Files

PDF, PPTX, Images

Directly parses printed slides, textbook PDFs, and legible handwritten notes.

Generation Speed

< 2 Minutes

Instant deck generation ready for spaced repetition on web and mobile.

THE WORKFLOW

How It Works

From raw document to active recall study trail in three steps.

1

Drop in Course Notes

Upload lengthy slide decks, PDF chapters, or photos of your handwritten notes.

2

Extract Key Mechanisms

Learnex identifies definitions, contrastive concepts, and formulas automatically.

3

Study with Spaced Repetition

Flip through your personalized flashcards and track your topic mastery score.

WORKED EXAMPLE

Worked Example: Organic Chemistry Lecture Slide to Cloze Flashcard

See how Learnex extracts reaction mechanisms and builds precision active-recall flashcard pairs with zero hallucinations.

Lecture 8: Electrophilic Aromatic Substitution (Slide 19)Raw PDF Input
Friedel-Crafts Acylation: An aromatic ring reacts with an acyl chloride in the presence of a strong Lewis acid catalyst (AlCl3). Unlike alkylation, carbocation rearrangement does NOT occur because the intermediate acylium ion is resonance-stabilized.

Extracted via Learnex OCR & layout analyzer

Generated Spaced Retrieval FlashcardGrounded Output

Front: Why does Friedel-Crafts acylation avoid carbocation rearrangement?

Active Recall

Prompt question targeting the conceptual contrast with alkylation.

Back: The intermediate acylium ion (R-C≡O⁺) is resonance-stabilized, preventing hydride/methyl shifts.

Syllabus Grounded

Includes Lewis acid catalyst note (AlCl3) and syllabus cross-reference to Slide 19.

Ready for active retrieval in your study trail

Key Takeaway: Eliminates 15 minutes of manual card authoring and clozing per slide.

CORE CAPABILITIES

Features designed for university-grade mastery

Spaced Repetition Built-in

Our adaptive mastery algorithm tests you at optimal forgetting boundaries to cement long-term semantic retention.

Zero Setup Friction

No more copy-pasting definitions into Anki or Quizlet. Get a full syllabus deck in under two minutes.

Strict Concept Grounding

Cards are strictly generated from your professor's terminology and equations, completely avoiding generic hallucinations.

Master Every Card

Stop guessing what to review. Learnex tracks your retention across every card and schedules spaced retrieval sessions before test day.

FAQ

Frequently Asked Questions

Everything you need to know about generating flashcards with Learnex.

How is Learnex different from Quizlet for flashcards?

Instead of searching through public community decks that may contain errors or diverge from your syllabus, Learnex creates flashcards exclusively from the exact material your professor uploaded.

Can I edit the generated flashcards?

Yes. You have full control to edit card prompts, modify answers, or add custom cards directly to any generated topic deck.

Do these flashcards use spaced repetition?

Yes. Learnex tracks retrieval stability per card and schedules reviews based on the Ebbinghaus forgetting curve, ensuring you review difficult cards more frequently.

Can I export flashcards to Anki?

Yes. You can export your flashcard decks in standard formats easily importable into Anki or other external tools.

Does Learnex support handwritten notes for flashcards?

Yes. Our advanced optical character recognition (OCR) parses handwritten lecture notes and whiteboard snapshots, converting them into structured flashcard pairs.

Are there limits on flashcard generation?

On the free Hiker plan, you can generate unlimited flashcards for 1 active subject. The Explorer plan ($4.99/mo, or $3.99/mo with .edu discount) unlocks unlimited subjects.

Can I combine multiple slide decks into one course deck?

Yes. All documents uploaded to a subject are synthesized into an integrated Study Trail with unified flashcard review sessions.