Two Dashboard
Aggregate key product signals from Amazon search results, including price, estimated sales, reviews, rankings, and comparison filters.
Tool4seller Chrome Extension
Free Chrome Extension Product Research Tool
Analyze products, keywords, markets, and profits directly on Amazon.
- ✓See key product metrics directly on Amazon search results and product pages
- ✓Compare products, brands, categories, and fulfillment paths without leaving the browser
- ✓Estimate costs, fees, and profit before you move into the full workflow
Install once, then move through the core browser tasks.
This page keeps the install action primary, then shows the browser-side workflows sellers use most often during product research and evaluation.
Product Analytics
Review core product information, rankings, ratings, variations, and seller signals to identify opportunities faster.
Keyword Research
Inspect search terms, recommended keywords, reverse ASIN opportunities, and frequency patterns from the same browser workflow.
Profit Calculator
Estimate referral fees, fulfillment costs, storage fees, and FBA vs. FBM profitability before you launch or source.
Search Results & Product Detail Dashboard
See the browser-side dashboards before you leave Amazon.
The extension surfaces the first product-research view directly on Amazon search results and product detail pages, so you can understand the listing landscape without opening a separate dashboard first.
- ✓Review prices, estimated sales, ratings, rankings, and listing quality signals on the page you are already browsing
- ✓Compare products, brands, categories, seller country, and fulfillment methods in one browser workflow
Product Research
Analyze product demand and competition before you commit to an opportunity.
Use the extension to review product lists, rankings, ratings, seller signals, and variation-level context so product selection stays efficient and grounded in live page context.
- ✓See core product information and top-result signals without breaking your browsing flow
- ✓Move from page-level opportunity checks into deeper analysis only when the product is worth it
Keyword Research
Move from listing context into search-term and term-analysis workflows.
Use the extension to inspect search position, sponsored rank, keyword suggestions, reverse ASIN opportunities, and search-volume context without losing the product page you are already viewing.
- ✓Inspect search position and sponsored rank from the same browser-side workflow
- ✓Carry keyword findings into listing and PPC decisions after the page-level check is complete
Profit Calculator
Estimate FBA and FBM profitability before you move forward.
The extension keeps fee and margin estimation close to product research, so you can compare referral fees, fulfillment costs, storage fees, and profitability outcomes before investing more time.
- ✓Check cost structure before you commit to sourcing or pricing work
- ✓Compare FBA and FBM paths in the same extension workflow
Support scope before you install
Keep browser scope, marketplace scope, and public security wording visible before the user leaves for the store install flow.
Supported browsers
Choose the store that matches your browser before you install.
Supported marketplaces
Coverage currently spans 11 public Amazon marketplaces across North America, Europe, and Asia-Pacific.
North America
US
Canada
Mexico
Europe
UK
Germany
France
Italy
Spain
Asia-Pacific
Japan
India
Australia
Store trust signals
Match the public Chrome Web Store trust language before installing.
Chrome Web Store listing availablePrivacy policy publishedDeveloper data-use declaration provided
The Chrome Web Store listing links to Tool4seller's privacy policy and shows the developer declaration that data is not sold to third parties, not used outside the item's core functionality, and not used for creditworthiness or lending decisions.
Frequently Asked Questions
The current public page presents the extension as a free install entry for core browser-side research workflows. If feature boundaries change later, pricing truth should be updated through the approved market source rather than invented here.
The current public baseline lists support for US, Canada, Mexico, Japan, Spain, UK, France, Germany, India, Italy, and Australia.
Currently, you can install and use the extension on Google Chrome and Microsoft Edge.
The current public store listing highlights search results analysis, product research, keyword research, and profit estimation workflows that run directly in the browser while you browse Amazon.
Need the full product workflow behind the extension?
Keep install primary on this page, then use a weaker bridge into the broader Tool4seller workflow only when you want deeper research, tracking, or seller operations beyond the browser shell.