Extension Tracker

Thumbnail Preview - YouTube Thumbnail Testing

988 users Rated 4.91 from 11 ratings Last updated 22 Jan 2026

By Thumbnail Preview Live in the Chrome Web Store apfdgbdbhkmkmljbbbgcehbpjjojlnml Last checked 26 Sep 2026, 22:06 UTC

The listing

What the Chrome Web Store shows, as of the last check

Preview and test your thumbnails directly on YouTubeSummary from the listing
Developer
Thumbnail Preview
Trader status
Not declared a trader under EU law
Category
Productivity › Tools
First published
22 Oct 2024
Last updated
22 Jan 2026
Version
2.4.1
Size
512 KiB
Minimum Chrome
88
Languages
1 language

English

Website
thumbnailpreview.io
Open in the Chrome Web Store ↗ Download the CRX from Google ↗
Users over time As shown on the Chrome Web Store

Tracking began on 26 Sep 2026. The chart appears after the second check.

Show the numbers
CheckedUsersRatingRatings
2026-09-269884.9111
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
#24,740
by users, of 264,254 extensions
In its category
#6,578
of 103,321 in Tools

What changed

Every change found on a check, newest first

No changes found since tracking began on 26 Sep 2026.

What it can access

From the extension's manifest, in plain language

Sites
  • https://*.youtube.com/*youtube.com and its subdomains
Sites where it runs scripts
  • https://*.youtube.com/*youtube.com and its subdomains
Browser features
  • storageSave settings and data in your browser
  • unlimitedStorageStore more data than the usual limit

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 26 Sep 2026, 22:06 UTC; next check around 25 Oct 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Thumbnail Preview - YouTube Thumbnail Testing” (apfdgbdbhkmkmljbbbgcehbpjjojlnml). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/apfdgbdbhkmkmljbbbgcehbpjjojlnml. Accessed 2026-09-27.
BibTeX
@misc{extensiontracker_apfdgbdbhkmkmljbbbgcehbpjjojlnml,
  title   = {Thumbnail Preview - YouTube Thumbnail Testing (apfdgbdbhkmkmljbbbgcehbpjjojlnml)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/apfdgbdbhkmkmljbbbgcehbpjjojlnml},
  urldate = {2026-09-27}
}

The data is free to reuse under CC BY 4.0.

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