Hover any YouTube thumbnail — a green comment bubble appears at the bottom-left. Click it to read the most-liked viewer comments before you waste 10 minutes on a bad video.
Demo: hover a thumbnail → click the green bubble
Sorted by 'relevance' (YouTube's own ranking for hottest comments). Free tier shows 1; paid unlocks all 3.
commentThreads.list with order=relevance — same source YouTube uses. Not scraping, not estimating.
Works anywhere YouTube shows a thumbnail. Bottom-left badge stays clear of YouTube's own duration tag in the right corner.
commentThreads.list charges 1 unit per call regardless of how many comments you request. We always fetch 3, then slice based on tier — paid users see more value, not more cost.
One-click install from Chrome Web Store. No setup.
OnceAccount one-login works across the whole OnceTool family. Or buy with email-only, get a license key.
Stop on any thumbnail, click the green bubble — top comments pop up. No more bait-and-switch videos.
Pay as you go. Credits never expire. Each tool has its own balance.
Buy once, use whenever. No "use it or lose it" pressure.
Sign in and your credits work on desktop, laptop, and tablet.
All data comes from YouTube's official Data API v3 — not estimates, not scraping.
No auto-renew, no subscription. 14-day no-questions-asked refund via PayPal.
1,500 credits
$0.0033 per hover
For casual lookups when you only hover once in a while.
Go to checkout3,500 credits
$0.0029 per hover
Most popular — you get ~17% more credits per dollar.
Go to checkout8,000 credits
$0.0025 per hover
For power users and creators — lowest per-hover cost.
Go to checkoutPowered by PayPal · One-time purchase, no auto-renewal · 14-day money-back
Already bought before? Sign in with license key →
We don't scrape YouTube pages or call undocumented endpoints. All data comes from Google's official Data API v3.
We don't track which videos you watch — only video IDs you hover are sent to fetch comments. Browsing history stays yours.
Your OnceAccount login state lives in chrome.storage.local; we never push it to other websites.
Free 10 daily hovers anonymous, no signup. Bump to paid when you want all 3 comments per click.