https://www.zerotube.app/

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8    <title>ZeroTube — Turn YouTube Into a Real Learning Session</title>
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18    <meta property="og:description" content="ZeroTube turns YouTube into a real learning environment — timestamped notes, AI summaries, transcripts, quizzes, and spaced repetition built into every video you study." />
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36    {
37      "@context": "https://schema.org",
38      "@type": "SoftwareApplication",
39      "name": "ZeroTube",
40      "applicationCategory": "EducationalApplication",
41      "description": "ZeroTube turns YouTube videos into structured learning sessions with timestamped notes, AI-generated summaries, quizzes, and spaced repetition review.",
42      "url": "https://zerotube.app",
43      "offers": {
44        "@type": "Offer",
45        "price": "0",
46        "priceCurrency": "USD"
47      },
48      "operatingSystem": "Web, Chrome Extension",
49      "featureList": [
50        "Timestamped notes",
51        "AI-generated summaries",
52        "Searchable transcripts",
53        "Auto-generated quizzes",
54        "Spaced repetition review",
55        "Study session tracking"
56      ]
57    }
58    </script>

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