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Thumbnail Tester PRO - YouTube A/B Test

Chrome extension by fatihdagustu20 · Productivity · Tools

  • Trader

A Chrome extension in Productivity · Tools with 4 users, barely installed.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
4
Rating
not rated yet
Users, last 15 days
+1
Version
1.0.0
Updated in the store
2026-04-14
Published
2026-04-14
Manifest
V3
Browser access
4 permissions

How it has moved

Users
+1 since 01.09
0-4 · 7 readings
  1. 2026-09-013
  2. 2026-09-034
  3. 2026-09-053
  4. 2026-09-064
  5. 2026-09-073
  6. 2026-09-090
  7. 2026-09-154
Users
+1 since 01.09
0-4 · 7 readings
  1. 2026-09-013
  2. 2026-09-034
  3. 2026-09-053
  4. 2026-09-064
  5. 2026-09-073
  6. 2026-09-090
  7. 2026-09-154

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Act on the current tab, but only after you click it activeTab
  • Schedule work to run later alarms
  • Show you notifications notifications
Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

fatihdagustu20 publishes 4 listings we track, 19 users between them. Listed website: fatihai.app.

  1. Background Remover PRO - AI Photo Editor fatihdagustu20 · Productivity · Tools · published 2026-04-15 8 users
  2. AI Product Description - E-commerce SEO Writer fatihdagustu20 · Productivity · Tools · published 2026-04-15 4 users
  3. AI Email Writer PRO - Smart Cold Email fatihdagustu20 · Productivity · Tools · published 2026-04-14 3 users

Like this one

Listings the catalog judges closest in what they say they do.

  1. YouThumb: YouTube Thumbnail Tester & Generator Describes nearly the same job, smaller audience 131 users ★ 5.0
  2. Pro Thumbnail Preview for YouTube Describes nearly the same job, smaller audience 74 users ★ 5.0
  3. ThumbLens — Thumbnail Preview & A/B Tester Describes nearly the same job, smaller audience 3 users (last published figure)
  4. FeedFlix: YouTube Thumbnail & CTR Sandbox Describes nearly the same job, smaller audience 9 users ★ 5.0
  5. ThumbnailTest Describes nearly the same job, smaller audience 2 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.