QuizLens

Turn any highlighted text into an instant, gamified quiz. Learn actively, not passively.

QuizLens transforms any text on the web into a personalized quiz, right in your browser's side panel. Highlight a passage, click "Quiz me!", and test your understanding in seconds. No tab switching, no flashcard apps, no copying text into another tool. 7 question types to test real understanding: - Multiple Choice: identify the right answer from plausible options - True/False: evaluate statements for accuracy - Fill in the Blank: recall key terms from memory - Short Answer: explain concepts in your own words (AI-evaluated) - Conceptual: demonstrate deeper understanding - Critical Thinking: analyze and synthesize across ideas - Vocabulary Matching: connect terms to definitions Works everywhere you read online: - News articles and blog posts - Online textbooks and course materials - Technical documentation and API references - Wikipedia and research papers - PDF content via screenshot and OCR (Pro) Free plan includes: - 5 quizzes per day - 3 question types (Multiple Choice, True/False, Fill in the Blank) - XP, levels, streaks, and badges - Full quiz history and progress tracking Pro plan unlocks: - Unlimited daily quizzes - All 7 question types including AI-evaluated open-ended answers - Screenshot and OCR quizzing for PDFs and images - XP bonuses for perfect quizzes, daily streaks, and milestones - Streak freezes to protect your streak on off days - All 50 achievement badges