Margenos: Walmart Seller Tool & Profit Calculator icon

Margenos: Walmart Seller Tool & Profit Calculator

by Lemont Holdings LLC · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 19 Oct 2026

Walmart reseller tool: profit, WFS & referral fees, sellers, stock and sales estimates on any Walmart product page.

Users
6
store count
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
total ratings
Store rank
#234K
#196K among extensions
Version
1.24.9
updated 16 Oct 2026

Users

monthly, 1 months
036Sep 2026Oct 2026Oct 2026
Latest, 19 Oct 2026: 6 usersMove the mouse over the chart for any month

Ratings count

monthly, 1 months
001Sep 2026Oct 2026Oct 2026
Latest, 19 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Margenos: Walmart Seller Tool & Profit Calculator

Margenos is the Walmart seller tool for resellers who want to know if a product is worth buying before they buy it. Open any Walmart.com product page and Margenos shows your profit after every Walmart fee, who else is selling, how much stock they have, and how fast the item sells. Built for Walmart Marketplace sellers doing online arbitrage, retail arbitrage and wholesale, it replaces a spreadsheet, a fee calculator and a sales estimator with one panel. WALMART PROFIT CALCULATOR - Walmart referral fees by category, calculated for you - WFS fees (Walmart Fulfillment Services) by shipping weight, plus storage fees, or your own seller-fulfilled shipping cost - Profit, ROI, margin and breakeven price as you type your cost - Max cost: the most you can pay and still hit your target profit SELLERS, STOCK AND THE BUY BOX - Every competing seller on the listing, with fulfillment type (Walmart, WFS or seller-fulfilled) - Stock per seller, and a running total when you hover - Who holds the buy box, with links to each seller's storefront SALES ESTIMATES AND PRICE HISTORY - Walmart sales estimates shown with a range and their source. When there isn't enough data, Margenos says so instead of guessing. - Buy box price and Walmart price history - Offer count, review and rating history VARIATIONS - Every size, pack count or color on the listing, with its price and stock ONE ACCOUNT FOR CHROME AND YOUR PHONE - Use the same login as the Margenos barcode scanner app for iPhone and Android: scan in the store, research at your desk - One scan allowance shared between the app and the extension - Plan, billing and settings in the panel's Settings tab - Margenos Help: 24/7 support chat in the Settings tab that can check your plan, reset your password, open billing, work out fees, or pass you to a person READS ONLY WHAT YOU OPEN Margenos reads only the Walmart pages you open yourself. It never clicks, browses, or adds anything to a cart. Every plan starts with a 14-day free trial. Plans and pricing: https://margenos.com/#pricing Questions? support@margenos.com Margenos is made by Lemont Holdings LLC and is not affiliated with Walmart Inc.

Growth

WindowUsersChangeRatingsRating
7 days+1+20.0%00.00

Chrome Web Store search rankings

Where Margenos: Walmart Seller Tool & Profit Calculator appears when people search the store, with the 30 day change
Search phrasePosition30 days
walmart#49new

Version history

8 versions recorded
1.24.913 Oct 2026
1.24.711 Oct 2026
1.24.410 Oct 2026
1.23.51 Oct 2026
1.23.430 Sep 2026
1.23.228 Sep 2026
1.23.126 Sep 2026
1.22.225 Sep 2026

Details

Category
Tools
First seen
25 Sep 2026
Size
104 KB
Languages
en-US
Pricing
Free
Privacy policy
margenos-production.up.railway.app
Support
margenos.com
Extension ID
pomkafoddncmlmpjaapaiaapcbpkdiee

Permissions and risk

Moderate riskimpact 2, likelihood 3
Permissions
storage
Site access
https://www.walmart.com/*https://margenos-production.up.railway.app/*

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