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Preview Test Thumbnails

Test and Preview YouTube thumbnails before publishing. Ensure your thumbnails stand out in the YouTube feed.

Users166
Rating5.0
Reviews5
Manifest versionV3
7-day growth-8
7-day growth rate-4.6%
Preview

Preview Test Thumbnails Media preview

5 assets
Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

1651681701721752026年5月29日2026年6月1日2026年6月4日Latest: 166
Rating trend

30-day rating change

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

30-day rating change

Start
5.00
Latest
5.00
30-day rating change
0.00
4.904.955.005.055.102026年5月29日2026年6月1日2026年6月4日Latest: 5.00
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 growthDeclining
-1-0.6%
7-day growthDeclining
-8-4.6%
30-day growthDeclining
-3-1.78%
Technical snapshot

Version, languages, and crawl freshness

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

Version1.0.2
ManifestV3
Size592KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

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

Perfect for YouTube creators and thumbnail designers who want to ensure their thumbnails are eye-catching and effective.

Key features:

- Analyze thumbnail visibility

- Check text readability

- Verify character prominence

- Test before publishing

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

The Chrome Web Store shows 5 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.