Ravenote
Turn online lessons into notes and spaced recall
Ravenote launched on May 4, 2026 with 16 votes, #970 of 20,538 launches that month and more than 95% of that year's launches.
What it does
You watch 40 hours of Udemy and YouTube. You remember 10%. Ravenote captures every lecture, quizzes you with spaced repetition, and keeps what you learn in your head. Free Chrome extension.
Free Chrome extension for Udemy & YouTube. Ravenote generates AI notes, quizzes you with active recall, and tracks mastery so you remember what you learn.
Ravenote captures every lecture, quizzes you with spaced repetition, and keeps what you learn in your head. Stop re-watching. Start remembering. 90 seconds to install. AI reads the full transcript and writes organized notes with headings, key terms, and takeaways. Open the transcript panel once. Ravenote reads every word in real time. Targeted comprehension questions powered by SM-2 spaced repetition. Every concept scored: new, learning, known, mastered. Review exactly what you need. One click captures the video frame and attaches it to your notes. Surfaces meaningful links from earlier lectures automatically. Ravenote appears automatically and starts reading the transcript. AI generates…from ravenote.xyz
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I combined spaced repetition with emails so you can remember anything2024 · ginkgonotes.com · ▲244Hey HN, I am a student shipping apps in my free time. This is my 4th for the year! Non-fic books and podcasts have been part of my life for years now but I always struggled with remembering what I’ve read or listened to. I wanted it to stick even after years. My notes list grew large but I never really revisited them. That’s why I created GinkgoNotes. You can enter notes you want to recall and leave it to the app to create a personalised (based on spaced repetition) email schedule. That means you’ll get your notes emailed to you a couple of times exactly when you should read them again…
Anki/Duolingo-like app using educational YouTube videos2024 · platoedu.org · ▲289Hi HN, I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory. Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!
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Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
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