Quizzer

Generates Duolingo-style quiz courses from PDFs with spaced repetition.

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Quizzer is a free, open-source tool that generates Duolingo-style quiz courses from any PDF, with spaced repetition, adaptive difficulty, and a tutor chat for follow-up questions. It's built for students and self-learners who want to turn dense study material into an interactive, gamified quiz course automatically.

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Behind the summary, Matchbox keeps a richer profile of Quizzer - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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