FREE Chrome Extension for Amazon & Walmart Sellers

Maximize Profits and Speed Up Your Workflow

The 3P Mercury Chrome Extension is your free, all-in-one solution built for serious Amazon and Walmart sellers. Instantly calculate profits, evaluate marketplace fees, view Keepa charts, and store winning leads in your central database—all directly within your browser. Whether you're doing online arbitrage or wholesale sourcing, this extension gives you lightning-fast insights to make confident, profitable decisions without ever switching tabs.

Built with sellers in mind, the extension is clean, intuitive, and requires zero setup. Unlike other tools that limit access or hide key data behind paywalls, 3P Mercury gives you the essentials—completely free. It’s perfect for new sellers looking to gain an edge or seasoned pros who want to streamline their workflow. Start sourcing smarter today with the 3P Mercury Chrome Extension.

Note: If you are a current 3P Subscriber, you already have an enhanced version of this Extension. Do not create another account. Free version includes basic features only and does not include customer support, advanced features or live market updates.

INSTRUCTIONS:

  1. Download our Extension
  2. Register for your account (click the Get it Now button)
  3. Watch the tutorial on how to use the Extension
Get It Now
3P Mercury Chrome Extension Screenshot

Features You'll Love

Profit Calculator

Quickly view your ROI, margin, breakeven point, and profit by entering sell and buy prices.

Marketplace Fee Breakdown

See how much Amazon or Walmart will take in fees and shipping.

Keepa Integration

Access sales rank history, offer counts, price drops, and more at a glance.

Lead Management Database

Instantly save profitable products to your central database with one click.

Amazon & Walmart Support

Whether you source from Amazon or Walmart, this tool overlays seamlessly.

Quick Decision

Our tool tells you instantly if an ASIN is bad and why.

Find Your Leads

Use filters to quickly retrieve saved leads based on your criteria.

Competition Analysis

Scope out your competition's stock levels and seller ratings in real time.

Custom Fees

Set Your Custom Fees to Calculate your Profits.

Get Started Free

*This free version does not include support, advanced features or daily updated market data. For premium features, explore the full 3P Mercury suite.