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Online Seller Addon icon

Online Seller Addon Chrome Extension Analysis

E-commerce & Dropshipping Utilities

Chrome extension ID: cmjihoeplpkmlmbbiiognkceoechmand

Online Seller Addon is a browser extension that allows users to view real-time stock levels of products directly on Amazon pages. It is intended to assist sellers and researchers in estimating competitor inventory.

Developer:amidart
Version:0.9.70
Size:137KiB
Last updated:
View developer profile
External:Chrome Web Store

Overview

Installs

80K+

Rating

★ 3.7

112 reviews

Languages

1 locales

Includes English (United States)

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

Backed by review samples

Macro category

E-commerce & Dropshipping Utilities

Pricing friction

Low review signal

Complaint intensity

Moderate review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

The extension is positioned as a free, account-free utility designed for Amazon sellers to track inventory counts across various offers. It emphasizes immediate usability and compatibility with international Amazon domains.

Inferred product pattern

Legacy browser extension suffering from technical debt and manifest incompatibility.

Review-backed pain points

Users frequently report that the extension stops displaying inventory data or returns 'No offers found' errors, rendering it non-functional for many.

Observed feature gaps

The developer explicitly notes that the tool uses an outdated Manifest version, warning that it will soon stop functioning on Chrome and recommending migration to Firefox.

Tags
AmazonStock CounterInventory TrackingSeller Tool
Target users

- Amazon Sellers

- Market Researchers

Primary use cases

- Tracking competitor stock levels

- Analyzing inventory availability on Amazon

Positive themes

- Helpful for price comparisons

- Simple user interface

- Convenient for quick stock checks

Negative themes

- Failure to display stock counts

- Inaccurate inventory data

- Bugs and inconsistent performance

- Lack of developer support

Observed friction

- Performance complaints detected

- None reported; the tool is claimed to be free.

Evidence boundary: Evidence is based on user reviews highlighting significant functionality regressions and the developer's own deprecation warning regarding Chrome Manifest support. Review sentiment is heavily skewed by the extension's recent technical decline and pending obsolescence on the Chrome platform.
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

Users report an absence of developer responsiveness or support when the tool stops working.

Reliability

High prevalence of reports stating the tool fails to pull data or shows incorrect stock numbers.

Privacy

No privacy-related complaints found.

Access & pricing

- Free usage observed

- No account requirement observed

- Free plan or free usage claimed

Store listing facts

Listing assets

- Screenshots: 3

- Videos: 0

- Languages: 1

Trust signals

- Privacy policy

- Developer contact

Store metadata

- Version: 0.9.70

- Size: 137KiB

- Last updated:

Store description excerpt
Short excerpt from the public Chrome Web Store listing; full copy is available on the official store page.
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) Visit a product detail page on Amazon.com, and click the "Count Stock!" button or click the OS Addon icon in the top right of your browser. OS Addon does not collect or store data outside your l…

Listing SEO keywords

Search intent keywords
Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

Amazon stock checkerAmazon inventory trackerFBA stock counter

Comparison

Amazon seller tools comparisonOnline Seller Addon alternative

Problem

OS Addon not workingAmazon stock not showingextension bugs

Alternative

best Amazon inventory extensions

Similar extensions

Jump to related discovery paths:

More in workflowMore from this developer

FAQ

What is Online Seller Addon mainly used for?
Online Seller Addon is a browser extension that allows users to view real-time stock levels of products directly on Amazon pages. It is intended to assist sellers and researchers in estimating competitor inventory.
What market signals stand out?
Visible niche traction with moderate review base. Last known update: 05/11/2026.
What should builders compare before entering this space?
Compare install concentration, rating quality, update recency, screenshots, developer portfolio, listing claims, and review-backed friction signals.
Is this page review-backed?
Backed by review samples. This page combines store metadata with selected review signals, while raw store metrics remain visible for comparison.

Screenshots

Online Seller Addon screenshot
Online Seller Addon screenshot
Online Seller Addon screenshot

Links

Privacy policy: http://dmitry.artamoshkin.com/privacy.html

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