Chrome Extension

Watch YouTube
at 600x Speed

Hover any video thumbnail and get an AI summary in seconds. Skip clickbait, detect hidden sponsors, and find exactly what you're looking for — without opening a single video.

Add to Chrome — It's Free See It in Action

3,200+ reviews · 4.8 ★ · Free plan available

AI Summary · 600x

no sponsor tutorial

Capabilities

Everything you need to browse smarter

Six ways YouTube 600x saves you from wasting time on videos that don't deserve it.

Instant AI Summaries

Hover any video thumbnail and watch the summary stream in — typically within 3 seconds. No clicks, no new tabs, no waiting for a full page load.

Answer Detection

Question-title videos get direct answers extracted from the content. "Is the M4 MacBook worth it?" gets a yes, no, or it-depends verdict — with reasoning.

Sponsor & Clickbait Flags

Detects paid promotions, exaggerated titles, and content that doesn't deliver on its thumbnail promise. Marked clearly before you invest your time.

Custom Intent Filters

Tell the extension what you're looking for — "SwiftUI animation tutorials with real projects" — and every summary is evaluated against your goal.

9 Languages

Interface and summaries in English, Chinese, Japanese, Korean, Spanish, French, German, Portuguese, and Russian. Switch anytime.

Smart Caching

Every summary is cached per video. Hover the same thumbnail twice, get the result instantly. Never pay twice for the same content.

How It Works

Three steps to 600x speed

Install the extension

Add YouTube 600x to Chrome from the Chrome Web Store. No account required to start. Works immediately on youtube.com.

Hover any thumbnail

Browse YouTube normally. Hover over any video thumbnail for about one second to trigger the AI summary panel.

Decide in seconds

Read the summary, check the signals, and decide whether to watch, save for later, or scroll past. Most decisions take under 5 seconds.

Live Preview

See what your viewers will experience

A realistic preview of how the extension appears on YouTube. The summary panel slides in beside the video you're hovering.

youtube.com

12:34

I Built a macOS App in 48 Hours — Here's What I Learned

TechWithTim · 340K views · 3 days ago

18:02

M4 MacBook Air Review: The Only Laptop That Matters in 2025

MKBHD · 2.1M views · 1 week ago

22:15

Why Everyone Is Wrong About AI Agents (and What They Actually Do)

Fireship · 890K views · 2 days ago

AI Summary

Tim built a native macOS menu bar app for time tracking in 48 hours using SwiftUI and AppKit bridging. Covers: project scaffolding, menu bar agent setup, custom popover with SwiftUI, NSStatusBarButton quirks, and a Core Data persistence layer. No sponsor segment detected. Pace: fast, code-heavy. Best for intermediate+ iOS/macOS devs. Not clickbait — title accurately reflects the content.

no sponsor coding intermediate tutorial

Pricing

Start free, scale when you need more

No surprises. Cancel anytime. All plans include every feature — limits are just on summary volume.

Free

$0/forever

Perfect for casual browsers.

10 summaries per day
All 6 signal types
9 language support
Summary caching
Custom intent filters

Pro

$4.99/month

For daily learners and researchers.

5,000 summaries per month
Custom prompt tuning
All 6 signal types
9 language support
Priority support
Summary caching
Custom intent filters

Max

$9.99/month

For power users and teams.

12,000 summaries per month
Custom prompt tuning
All 6 signal types
9 language support
Priority support
Summary caching
Custom intent filters
Early access to new signals

All payments processed securely via Paddle. VAT handled automatically.

FAQ

Quick answers to common questions

Does YouTube 600x work on every YouTube page? +

Yes. The extension runs on the YouTube homepage, search results, channel pages, and the sidebar recommendations on watch pages. Anywhere a video thumbnail appears, the hover summary is available.

How accurate are the AI summaries? +

Summaries are generated by analyzing the video's transcript, title, description, and metadata using a large language model. They capture the main points and structure accurately in most cases. For very long or highly technical content, the summary provides a high-level overview rather than exhaustive detail. Think of it as a reliable filter, not a replacement for watching.

Is my data sent anywhere? What about privacy? +

Video metadata (title, description, transcript) is sent to our API solely for generating summaries. We do not store your YouTube watch history, browsing behavior, or personal data. Summaries are cached anonymously. No account is required for the Free tier. Read our full privacy policy for details.

Can I customize what the summary includes? +

Yes. Pro and Max subscribers can tune the summary prompt to emphasize specific aspects — timecodes, technical depth, humor detection, chapter breakdowns, or whatever matters to you. Free users can set custom intent filters that evaluate each summary against their current search goal.

What happens when I hit my daily or monthly limit? +

Hover summaries simply pause until your quota resets. Cached summaries for videos you've already previewed remain available. You'll see a clear counter in the extension toolbar showing your remaining summaries. Upgrade anytime to increase your limit instantly.

Which browsers are supported? +

YouTube 600x is available for Chrome and all Chromium-based browsers (Edge, Brave, Arc, Opera). Firefox and Safari versions are in development. Join the mailing list for launch notifications.

Watch YouTubeat 600x Speed