Create Opposite Flashcards from Any PDF or Document
Stop manually writing review cards. Upload your lecture notes, textbooks, or presentations, and let our AI instantly generate high-utility flashcards optimized for recall.
No credit card required
Trusted by learners from top universities
CogniGuide at a glance
- What you get
- Question-and-answer flashcards scheduled with FSRS spaced repetition. Free: up to 15 cards per deck (30 on your first 3 creations). Plus: up to 150, with AI explanations for any card.
- Sharing
- Share any deck, quiz or mind map with a link.
- Price
- Free plan: 5 creations a week, up to 3 a day. Plus: $9.99/month or $99.90/year (USD; local prices at checkout).
- Sign-up
- A free account is required before you create anything (Google or email). No credit card.
- What you can upload
- PDF, Word (.docx), PowerPoint (.pptx), plain text or Markdown, and images (PNG, JPG, WebP, GIF), or type a topic. One file per creation on the free plan; several at once on Plus.
How it compares: vs Knowt · vs Quizlet · vs NotebookLM · vs Mapify
From Complex Document to Active Recall in Minutes
Our system handles diverse file formats, extracting key concepts and formatting them perfectly for science, language, or history review.
Universal Document Import
Upload PDFs, DOCX, and image files directly from your device. The AI parses text and visual data to capture essential study points.
Built-in Spaced Repetition
Cards are scheduled automatically based on proven cognitive science algorithms, ensuring you review material right before you forget it.
Set Your Target Exam Date
Input your test date, and the system dynamically adjusts your study schedule to maximize retention before the deadline.
Effortless Sharing
Generate a simple public link to share your generated decks instantly with study partners or classmates.
The Fastest Path to Mastery
We streamlined the learning workflow so you can spend more time understanding concepts and less time preparing materials.
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1. Upload Your Source Material
Select your files—be it a lengthy research paper (PDF) or presentation slides (DOCX). Our converter ingests the content immediately.
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2. AI Generation & Review
The AI extracts core information and structures it into atomic Q&A flashcards. Review the batch for accuracy if needed.
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3. Study Smarter
Begin your study session. Cards appear based on spaced repetition scheduling, pushing you toward deep, long-term memory encoding.
Maximize Retention: AI Conversion for Any Study Source
Generate opposite flashcards from your PDF and other documents is now faster than ever. This powerful capability leverages advanced machine learning to transform dense source material into actionable study tools, specifically focusing on generating paired concepts, definitions, or inverse relationships relevant to your input. Educators and lifelong learners rely on active recall, and by automating the creation process, we ensure that 100% of your study time is spent recalling information rather than typing it.
- Converting lecture slides into study questions
- Creating foreign language vocabulary pairs
- Generating chemical structure/name opposites
- Extracting Pros and Cons from case studies
- Building formula and corresponding concept cards
Whether you are preparing for a comprehensive final exam or need to rapidly absorb technical specifications from a manual, using AI to structure your review around essential concepts drastically improves efficiency. Focus on mastering the material presented in your documents, knowing that the scheduling algorithm is handling the heavy lifting of optimizing your review intervals.
Explore Smarter Study Techniques
Frequently Asked Questions About AI Flashcard Creation
Answers to common queries regarding file support and our study scheduling system.
Which file formats are supported for flashcard generation?
We currently support PDF, Microsoft Word (.docx), and common image formats (like .png or .jpg) for content ingestion.
How does the spaced repetition scheduling work?
The system uses established learning algorithms that track your performance on each card, showing difficult cards more frequently and mastered cards less often.
Is there a limit to the number of cards I can generate for free?
The basic plan allows for a generous amount of free generation credits. For high-volume users, our paid subscription offers increased capacity and access to advanced AI models.
Can I edit the flashcards after the AI generates them?
Currently, the focus is on rapid, high-quality generation. While we don't offer in-app editing yet, generated cards are ready for immediate use via active recall practice.