Watch it once.
Get it instantly.
TubeStack is a YouTube summarizer built right into your sidebar. Open any video — podcast, interview, tutorial, news — and instantly see what's in it, so you know exactly what's worth your time.
How it works
Know what's in any video
before you commit to it
Open YouTube. Hit Create Stack. That's it.
Open any video
Any video with captions works — which is almost all of them. Lectures, tutorials, podcasts, finance, cooking. All of it.
Hit "Create Stack"
The TubeStack panel lives right in YouTube's sidebar. One click and the AI gets to work — no new tabs, no copy-pasting.
AI breaks it down
Not a wall of text — structured cards grouped by topic, so you can scan the whole video in under a minute.
Dive in or jump around
Flip through cards to get the gist. Tap any timestamp to jump straight to that moment — no scrubbing, no guessing.
Features
Your shortcut through
any YouTube video
Most YouTube summarizers give you a paragraph and call it done. TubeStack gives you the whole video, broken into cards you can actually navigate.
Lives inside YouTube
No new tab. No app switching. The panel opens right next to the video — see what's inside without leaving the page.
Cards, not a wall of text
The video is broken into bite-sized topic cards. Scan the whole thing in 60 seconds and decide if it's worth your full attention.
Jump to any moment
Every card links to the exact second in the video. Tap to jump straight there — no scrubbing, no rewinding.
Keep what matters
Export the cards and take them anywhere — your notes app, a doc, a message to a friend. Your takeaways, your format.
Follows you everywhere
Sign in with Google and your stacks are on every device. Pick up where you left off, whenever you want.
Any video, any topic
Podcasts, interviews, news, tutorials, cooking, finance — if it has a CC button, TubeStack can break it down.
Reviews
What people are saying
Absolutely loved using TubeStack. I enjoy listening to and watching podcasts, but on busy days, it can be hard to sit through an entire episode or keep track of the key takeaways. TubeStack made that so much easier. It beautifully broke down each section of the podcast, helped me understand the conversation at my own pace, and made it simple to go back to the parts that mattered most. And the best part — I could copy the notes straight into my own notes app. Such a thoughtful and useful tool. Loved this!
Great tool! Perfect for saving time and makes my day super-productive.
Have feedback? Leave a review on the Chrome Web Store ↗
FAQ
Before you decide
Stop watching blind.
Know what's inside first.
Most people sit through an entire video to find out if it was worth it. TubeStack shows you in 30 seconds.