Stable signalNo paid features detectedMedium-risk permissions

Online Seller Addon

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

Users70KCurrent public install base

Rating3.7Store average score

Reviews112Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

Online Seller Addon Media preview

4 assets

Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

Rating trend

7-day rating trend

View collected rating snapshots from the latest 7-day window to assess rating stability.

7-day rating change

Start

3.70

Latest

3.70

7-day rating change

0.00

2026年7月14日2026年7月20日

Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthNo data

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7-day growthFlat

00%

30-day growthNo data

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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

Inspect the latest comments and rating distribution.

Store average score3.7Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average3.5Average computed only from synced review bodies below

Reviews with text96Synced review bodies

Total ratings / reviews112Chrome Web Store public rating/review count

Store average score: 3.7. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★

4★

3★

2★

1★

Aydın Şahin2019年9月4日

Super!

Miles Zhang2019年9月3日

Perfect

Justin B2019年9月1日

Updated: Fantastic, and they listen to feedback too!

Florentino Villaro2019年8月24日

I used to use Helium 10 to see competitor stock counts at $97 a month! Thank you so much for the extension! Now I'm using Junglescout at $59 a month plus your add on so I'm saving $28 a month.

Najma Ramadhan2019年7月26日

I Like it

Ken Kuebler2019年7月25日

Does exactly what it says with no limitations

Showing 96 results

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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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