Find better deals before you buy.
MarginMole helps you compare marketplace listings with retail prices, sold data, seller signals and deal scores so you can make better buying decisions before spending money.
Free account. No credit card required.
Built for bargain hunters, resellers and anyone who wants clearer numbers before buying from online marketplaces.
Live preview
Try a real search first.
Preview two live listing cards, then create a free account to unlock the full scanner, saved research and full Mole Scores.
Start with a preview search.
This uses the same live listing scanner as the app, but only shows a small preview before signup.
Want the full result list?
Free accounts get 5 scans per day. No credit card required.
Live scans
Search live marketplace listings to spot possible deals without checking every result manually.
Sold comps
Check whether similar products have actually sold, not just what sellers are asking for them.
Retail baseline
Compare marketplace listings with retail prices and retailer product feeds where reliable matches are available.
Mole Score
Get a Mole Score for each listing based on price, deal margin, seller signals, data confidence and buying potential.
BurrowBot AI
A deal assistant that explains the risks, not just the numbers.
BurrowBot is MarginMole’s AI deal checker. It helps inspect listings for hidden issues, weak margin signals, risky wording and things you should verify before buying.
01
Hidden listing risk
BurrowBot looks for wording such as spares, repairs, locked, untested or collection-only that can turn a good-looking margin into a bad buy.
02
Fake margin checks
It compares the headline profit with condition, fees, retail baseline and comp strength so one inflated number does not mislead the whole decision.
03
Plain-English verdicts
Instead of just showing numbers, BurrowBot explains why a listing may be worth reviewing, skipping or checking more carefully.
Search what resellers actually look for
Built for eBay flipping, resale profit checks and underpriced listing research.
MarginMole is designed around long-tail deal research: checking whether an eBay listing is underpriced, calculating possible resale profit, spotting fake margins and deciding whether a product is worth digging into with BurrowBot.
eBay deal scanner
Scan active eBay listings and compare price, margin, seller signals and Mole Score in one place.
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Reselling profit calculator
Check whether a listing still has margin after estimated costs, fees and resale value.
Explore topic →
Find underpriced eBay items
Learn how to spot undervalued listings without trusting active prices blindly.
Explore topic →
Built openly and privacy-first
A real tool, actively improved by an independent UK developer.
MarginMole is built to make resale research less confusing. It helps users compare estimated margins, review deal signals and save alerts without pretending any tool can guarantee profit.
We do not sell user search data. Payments are handled securely through Stripe, and MarginMole does not store full card details.
Privacy
Search data is used to provide the tool, not sold to advertisers.
Secure payments
Card payments are processed by Stripe. MarginMole does not store full card numbers.
Active changelog
Updates are published so users can see the project is being maintained.
Deal research is easier when the important information is in one place.
MarginMole is a deal research and price comparison tool. It helps users search marketplace listings, compare retail baselines, check seller signals and rank results with a Mole Score.
Many listings look good at first because the price seems low. MarginMole is built to help users check the numbers, avoid bad buys and spot deals that are actually worth reviewing.
01
Search a product
Enter the product you want to check and MarginMole will scan marketplace listings for possible deals.
02
Compare the numbers
Compare the listing price with retail baselines, sold data, seller signals, estimated margin, ROI and more in one card.
03
Decide what is worth chasing
Use the Mole Score and supporting data to decide whether the listing is worth checking further or skipping.
Why this score?
Mole Score is designed to be explainable.
A high score should not mean “buy instantly”. It means the listing has stronger research signals and is worth reviewing before you spend money.
Margin and ROI
40%How much room appears to be left after purchase price, estimated fees and postage.
Market evidence
25%How useful the comp, retail baseline and pricing signals are for this product.
Seller and condition risk
20%Whether the listing looks risky because of condition, wording, seller signals or missing details.
BurrowBot caution
15%AI-assisted checks for hidden risk, weak confidence and suspicious deal signals.
Tools for clearer deal research.
This is the type of result that MarginMole can provide for you, including listing price, reference value, estimated margin, ROI, retail estimates and more.
Save deals to your watchlist
Save interesting listings to a watchlist so you can compare them and come back later.
Create alert presets
Create alerts for products or categories you want to check regularly without starting from scratch every time.
Retail baseline checks
Check listings against retail prices and retailer product feeds to understand whether a deal is actually below normal market prices.
Seller trust signals
Check seller signals for possible risks so you can slow down when a listing needs extra caution.
Export your research
Users on paid plans can export listing research for spreadsheets, tracking and deeper comparison.
Product proof
See what the app actually helps with.
MarginMole is more than a landing page. It has scanner cards, BurrowBot reviews, watchlists, alert presets and export tools for paid users.
Search results
Compact cards show buy price, estimated profit, ROI, Mole Score, confidence and direct review actions.
Live eBay listing scan
Compact mobile results
Quick Review and eBay buttons
BurrowBot review
Ask BurrowBot to explain the risks, margin quality and what you should verify before buying.
Risk summary
Plain-English verdict
Follow-up questions
Watchlist and alerts
Save interesting products and build alert presets so you can return to the searches that matter.
Saved deals
Alert Presets
Paid-plan exports
Works best for
Choose the plan that works for you.
Start small, then upgrade at a later date when you need higher scan limits and deal research tools.
Free
£0
For trying MarginMole and checking a few deals each day.
5 scans per day
3 saved deals
1 Alert Preset
Basic Mole Score
No credit card required.
Pro
£4.99/month
For regular deal hunters who want more scans, saved research and alerts.
30 scans per day
Unlimited saved deals
10 Alert Presets
Manual alert scans
Unlimited
£9.99/month
For power users who want higher limits, exports and a more serious deal research workflow.
Everything in Pro
Unlimited Alert Presets
CSV export
No ads
Is profit guaranteed?
No result is a guarantee. MarginMole provides research support, but you still need to check the listing, seller, condition, fees and demand yourself.
Where does the data come from?
MarginMole uses public marketplace signals, resale research data and retail baseline information where available. Estimates are for research support only and should be checked manually before buying.
Why do some products have lower confidence?
Confidence is based on how much useful comparison data is available, such as recent comp signals, retail baseline matches and listing quality. Medium or Low confidence means it is worth checking the listing manually before buying.
Learn and trust
Learn the resale basics before you buy.
MarginMole is not just a scanner. The site also includes original guides that explain resale profit, sell-through rate, fake margins, beginner niches and how to check whether a deal is actually worth buying.
You can also read more about who built MarginMole, why it exists and how the site supports users with deal research.
Clear and honest
Built to support your research before you buy.
MarginMole brings useful signals together, but you still decide what to buy. Check the listing, seller, condition, delivery, fees and demand before spending money.
Affiliate disclosure
Some outbound retailer links may be affiliate links. MarginMole may earn a commission at no extra cost to you.
Ready to research your next deal?
Create a free MarginMole account to save your research, track deals and use your daily scan allowance. If you already have an account, jump straight back into your dashboard or start searching.
Free account. No credit card required.