Online Seller Addon

Free stock counter for Amazon sellers with unlimited daily product checks. This extension will show the inventory counts for the…

Users70K

Rating3.7

Reviews112

Manifest versionV3

7-day growth-10K

7-day growth rate-12.5%

Preview

Online Seller Addon Media preview

4 assets

Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

Rating trend

30-day rating change

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30-day rating change

Start

3.70

Latest

3.70

30-day rating change

0.00

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 growthFlat

00%

7-day growthDeclining

-10K-12.5%

30-day growthDeclining

-20K-22.2%

Technical snapshot

Version, languages, and crawl freshness

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

Version0.9.63

ManifestV3

Size137KiB

Languages1English (United States)

Published--

Store updated--

Last crawled--

Overview

Product summary

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

Free stock counter for Amazon sellers with unlimited daily product checks. This extension will show the inventory counts for the different offers on an Amazon listing.

You do not need to create an account or signup for anything. You can add the extension and start using it immediately.

Works for all Amazon domains.

Important Notice: Chrome will soon disable this extension. It uses an older version of Manifest that Chrome no longer supports; please consider migrating to Firefox to continue using it: https://addons.mozilla.org/en-US/firefox/addon/online-seller-addon/

How to use the Amazon stock checker:

Add the extension to your browser (click the Add to Chrome button in the top right and confirm)

Reviews

Recent review snapshot

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The Chrome Web Store shows 112 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★

4★

3★

2★

1★

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AI product read

Amazon inventory/stock counter that shows the quantity of stock available for each seller on an Amazon product listing

Amazon sellers need to know competitor inventory levels to make informed sourcing and pricing decisions. This extension automates the process of checking stock quantities by adding items to cart and determining available inventory.

User visits any Amazon product page, clicks the 'Count Stock!' button or the extension icon, and the extension automatically adds items to cart with increasing quantities to determine each seller's available stock. Results are displayed in a widget showing seller name, quantity, price, type, rating, and condition. Users can filter results and export data.

Target users: Amazon sellers conducting competitor research / Amazon FBA/FBM sellers analyzing market inventory / E-commerce researchers studying Amazon product availability

Extension uses Manifest V2 (being deprecated by Chrome as noted in the extension itself), though store listing shows manifestVersion 3 - may have been partially updated
The promotional notifications for third-party products (RevSeller, DS Amazon Quick View) could be misleading as they contain paid/trial language but are not features of this extension
No backend API endpoints found - extension operates entirely client-side by manipulating Amazon's cart system

Monetization

No paid features detected

The extension is completely free to use. The store description explicitly states: 'Premium features may be added in the future, but the stock counter is completely free to use.' No payment processing code, subscription logic, or billing APIs found in source. The keyword matches for 'trial' and 'premium' are false positives - 'trial' appears only in CSS class names for promotional notifications about third-party products (RevSeller), not for the extension itself.

Confidence: 90
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension explicitly states in its store description: 'You do not need to create an account or signup for anything. You can add the extension and start using it immediately.' No login UI or authentication code found in source files. The extension works directly on Amazon pages without requiring any account.

Permission risk

Medium-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：activeTab、scripting、storage、webRequest
站点访问范围较广（63 项）

Publisher

amidart

Dmitry Artamoshkin

Email: [email protected]
Phone: --
Address: Calle 92 Playa del Carmen, Quintana Roo 77728 Mexico

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