Turn rabbit holes into goldmines.
Lectures, analyses, tutorials on YouTube —
you don't have time to watch them all.
Stacktube monitors the channels you care about, pulls out what's worth your time, and stacks the rest into notes you'll actually use.
React 19: What's New
30 min
Intro to Deep Learning #1
45 min
Startup Growth Hacks
25 min
# React 19: Key Changes
- Server Components stabilized
- The use() hook, finally
- Form Actions, simplified
# Deep Learning: Foundations
- Perceptron → multi-layer networks
- Backpropagation, visualized
- Loss functions and optimization
# 5 Growth Playbooks
- PMF validation frameworks
- Measuring viral coefficient
- Retention case studies
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Subscribe to 10 channels and you're looking at 5–10 new videos a day. Which one is actually worth your 30 minutes?
You watched the whole lecture. Can you remember what mattered? That 30 minutes might have been a 1-page note.
“This video covered X, Y, Z” doesn't help you decide if it's worth watching — let alone apply anything.
✅ Channel registered
Paste any YouTube channel URL. New uploads are detected automatically — no need to check back.
📝 Type detected: Tutorial
📝 Extracting key points…
First, Stacktube classifies the video type — lecture? tutorial? news? / Then it runs a type-specific analysis and pulls out only what matters. / Gemini analyzes, Claude structures.
# React 19: Key Changes
- Server Components stabilized
- use() hook
💡 3 key insights extracted
Two AI models cross-check each other, / producing notes you can actually use — / not another bulleted summary.
Obsidian · Email · Drive / · Kindle · reMarkable. / Your knowledge library keeps stacking up.
Extraction depends on video type. That's why it beats “summary.”
# Key Takeaways
- 3 frameworks compared side-by-side
- 4 pitfalls when applying in production
- Step-by-step implementation guide
## Core Claim
Data-driven decisions are…
Read time: 3 min
Framework For {typeName} videos, Stacktube focuses on the items above. Not a summary — a structure tuned to how this type is best read.
💡 핵심: 복잡한 문제를 겹침 없이, 빠짐 없이 분해하는 구조적 사고법이다.
비즈니스 의사결정에서 가장 흔한 실수는 문제를 감으로 쪼개는 것이다. MECE는 맥킨지에서 체계화한 분류 원칙으로, 전략 컨설팅의 기본 도구다.
| 원칙 | 의미 | 예시 |
|---|---|---|
| Mutually Exclusive | 항목 간 겹침 없음 | 남성/여성 (O), 학생/20대 (X) |
| Collectively Exhaustive | 전체를 빠짐없이 포함 | 국내/해외 (O), 서울/부산 (X) |
✅ 분류 축을 먼저 정하고, 각 항목이 서로 겹치지 않는지 검증하라.
⚠️ 창의적 발상이 필요한 단계에서는 MECE가 오히려 사고를 제한할 수 있다. 발산 → 수렴 순서를 지킬 것.
로직 트리, 이슈 트리, 가설 사고, 피라미드 원칙
A system that sorts what to watch from what to skip.
Clear the 3-minute videos fast. Spend your time on the ones that matter.
AI summary tools
Three-line summary
Nothing sticks
Video note apps
Manual timestamps
Takes longer than watching
Stacktube
Auto-filter the worthless
Auto-stack the rest
7 days of Pro on the house
When new videos drop on a channel you registered, we catch them. / Stacktube keeps working while you sleep.
Stacktube sorts videos into five types, then runs a type-specific analysis. / For a framework video, we pull the model and its applications. / For a tutorial, we pull the step-by-step.
Key claims, supporting evidence, action steps, related concepts — / not a “summary,” a structure you can actually put to work.
Overnight analyses, delivered every morning. / Catch up over coffee — yesterday's knowledge, today's reading.
Obsidian · Email · Drive · Dropbox · Kindle · reMarkable / Pair with compatible e-ink devices like Boox or Supernote via cloud folders.
English · 日本語 · 한국어 · Español · Português · Deutsch / Watch a Spanish lecture or a Japanese tutorial — receive the note in English.
Stacktube delivers notes to the tools you already use.
AI knowledge automation system
As your analyzed videos stack up, search across them. Ask “Pros and cons of React Server Components” — Stacktube combines answers from 3 relevant videos into one.
Obsidian
Auto-saveMarkdown notes with bidirectional links. Your personal wiki, stacking.
→ A searchable knowledge base that grows itself
Every morning, a 3-minute review over coffee.
→ Never miss a video worth watching
Google Drive
Auto-backupCloud backup across devices. Searchable anywhere.
→ Lose a device, keep your knowledge
Dropbox
Team syncAuto-sync to your team's shared folder.
→ Your team learns in parallel
Chrome extension
Coming soonOne-click analysis while watching on YouTube.
→ From video to note, no context switch
Every analyzed note reaches your reMarkable via Google Drive sync, or Kindle via direct email delivery. Boox and Supernote work too — anything that reads Drive or Dropbox folders. Open a note on e-ink. Highlight. Annotate. Read deeply.
→ Digital detox meets deep work
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Watch less. Know more.
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