Tools
Thumbnail Preview - YouTube Thumbnail Testing icon

Thumbnail Preview - YouTube Thumbnail Testing

Preview and test your thumbnails directly on YouTube

Users748
Rating4.9
Reviews10
Manifest versionV3
7-day growth-14
7-day growth rate-1.84%
Preview

Thumbnail Preview - YouTube Thumbnail Testing Media preview

6 assets
Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

7457517577637692026年5月29日2026年6月1日2026年6月4日Latest: 748
Rating trend

30-day rating change

Track rating movement over time to see whether quality signals remain stable.

30-day rating change

Start
4.90
Latest
4.90
30-day rating change
0.00
4.804.854.904.955.002026年5月29日2026年6月1日2026年6月4日Latest: 4.90
2026年5月29日2026年6月4日
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthGrowing
+1+0.13%
7-day growthDeclining
-14-1.84%
30-day growthGrowing
+21+2.89%
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version2.4.1
ManifestV3
Size512KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

Preview your youtube video thumbnail and title directly within your YouTube homepage / search page or video recommendation and grow your channel to new heights.

Let’s get those watch hours up, let’s increase your video virality, let's grow that channel.

As a YouTuber, seeing your upcoming video's thumbnail in context is crucial to knowing if it stands out or blends in with other content.

A good thumbnail is the entry/growth gate of your video. It does not matter how good your video is if users don’t get to see it.

It is said with a good thumbnail preview

● ✅ Bring 30-40% more views to a video

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

The Chrome Web Store shows 10 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★
0
4★
0
3★
0
2★
0
1★
0
Related products

Similar and related extensions

Review related products from the Chrome Web Store detail page.