Ext Ops Panel
Open the app

Sellers.json Inspector

Chrome extension by OstinUA · Productivity · Developer

A Chrome extension in Productivity · Developer with 45 users, barely installed.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 1 screenshot

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

Users
45
Rating
not rated yet
Users, last 16 days
+5
Version
1.3.3
Updated in the store
2026-04-29
Published
2026-04-03
Manifest
V3
Browser access
1 permission, 1 site pattern

How it has moved

Users
+5 since 31.08
40-46 · 7 readings
  1. 2026-08-3140
  2. 2026-09-0244
  3. 2026-09-0443
  4. 2026-09-0646
  5. 2026-09-0745
  6. 2026-09-0944
  7. 2026-09-1545
Users
+5 since 31.08
40-46 · 7 readings
  1. 2026-08-3140
  2. 2026-09-0244
  3. 2026-09-0443
  4. 2026-09-0646
  5. 2026-09-0745
  6. 2026-09-0944
  7. 2026-09-1545

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

Every site you visit. This extension can read and change the content of any page you open.

  • 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

OstinUA publishes 12 listings we track, 242 users between them.

  1. Web Traffic Analyzer & Geo Stats Tool OstinUA · Productivity · Workflow · published 2026-04-23 53 users
  2. Multi-Line Auto Typer OstinUA · Productivity · Tools · published 2026-04-21 47 users
  3. adWMG Chrome Extension: ads.txt/sellers.json OstinUA · Productivity · Workflow · published 2025-12-12 29 users ★ 5.0
Show 5 more from this publisher
  1. Mass Ads & App-Ads Checker OstinUA · Productivity · Developer · published 2026-04-02 16 users ★ 5.0
  2. Programmatic ad-scanner OstinUA · Productivity · Tools · published 2026-04-20 11 users
  3. Game Store Link Extractor OstinUA · Productivity · Tools · published 2026-04-21 11 users
  4. Ad Network Logger OstinUA · Productivity · Tools · published 2026-04-22 10 users
  5. Site Analyzer OstinUA · Productivity · Tools · published 2026-04-22 7 users

Like this one

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

  1. Adtimizer — sellers.json validator Describes nearly the same job, smaller audience 25 users ★ 5.0
  2. AdsTxt Inspector Describes nearly the same job, smaller audience 376 users
  3. Adstxter - Ads.txt Seller Tester Describes nearly the same job, smaller audience 58 users ★ 5.0
  4. Ads.txt Checker Describes nearly the same job, smaller audience 192 users
  5. Inventory Auth Auditor Describes nearly the same job, smaller audience 3 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.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

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.