Net margin calculated
The simulator deducts purchase cost, shipping, fees and your tax buffer. You see the result before buying.
15-day Pro trial — no commitment, cancel in 1 click
Stop losing money on every lot you buy
A lot bought for $80 and resold for $220 isn’t $140 of profit: after fees and French social charges, $96 is left. Margeo works this out before you buy, then tracks inventory, sales and taxes.
Short answer: Margeo is a French resale-management tool for Vinted, Leboncoin and eBay sellers. It works out the real net margin before you buy — platform fees, shipping, packaging and French social charges included — then tracks inventory, sales and DAC7 thresholds. Starter is free forever with no card; Pro is $9.99/month or $69/year.
No credit card · account ready in 2 minutes
Pro trial: card required, no charge before day 16.
What the 15-day Pro trial unlocks
Everything unlimited: items, lots, simulations, AI, full profit tracking, photos and receipts.
Card required, no charge before day 16 · cancel in 1 click during the trial · one trial per account — terms
Starter free forever
No card to start
Works offline
GDPR, hosted in Europe
No commitment, no catch
Cancel in 1 click, Stripe payments, CSV/JSON export any time — even on Starter.
Margin simulator
Net margin
–
ROI
–
Adjust the sliders — the AI analyzes your lot live.
$0
Starter, no credit card
15 days
15-day Pro trial
CSV
Exportable data
1 click
To cancel, no questions asked
Built for resellers on every platform
Vinted
Depop
eBay
Facebook Marketplace
Flea markets
Yard sales
Vinted
Depop
eBay
Facebook Marketplace
Brocantes
Vide-greniers
Product proof
What you can verify after opening Margeo
Recoverable data
Your items, sales and expenses remain exportable as CSV/JSON. You are not locked into a marketing promise.
Payment separated from testing
Starter does not ask for a credit card. Pro includes a 15-day free trial — card required, charged only once the trial ends.
Comparison
Margeo, Excel or generic software: which should you pick?
Why a reseller-focused tool beats a generic spreadsheet or abstract accounting software.
| Feature | Excel / Sheets | Generic accounting software | Margeo |
|---|---|---|---|
| Overall net profit | Manual | Varies by tool | |
| Before-buying simulator (flea market) | |||
| Expense and cost-buffer tracking | Partial | ||
| Multi-platform (Vinted, LBC, eBay…) | Manual | ||
| Offline at flea markets | |||
| AI assistant specialized in reselling | |||
| Price | Free (but tedious) | $20-60/mo | $0 forever |
The problem
Doing buy-and-resell but not sure you’re actually making money?
Unreadable Excel spreadsheets, rough margin guesses, confusing fee rules, no way to tell which lot is profitable… You’re not alone. Many marketplace resellers lose money without realising it, for lack of the right tool.
Margeo solves all of this in one app
Margeo is a buy-and-resell management app that calculates real net margin after fees and social contributions, tracks inventory and prepares micro-business tax reporting for resellers on Vinted, Leboncoin, eBay and other marketplaces. Built by a reseller: revenue per marketplace, one overall net-profit total from recorded costs and fees, per-sale estimates in Pro/Business CSV exports with micro-BIC contributions kept separate.
Features
What makes a buy & resell tool complete?
From bulk purchasing to selling across marketplaces, Margeo covers every step with tools built by and for resellers.
Buy & resell inventory management
Full workflow: bulk purchase → receiving → stocking → sale → shipping → confirmation. Track every item in real time with its status, purchase price and estimated selling price.
Margin & profitability simulator
Calculate your net margin before buying a lot. Factor in the purchase price, shipping fees, marketplace charges and your own tax buffer. Know whether a deal is profitable before you commit.
AI assistant for resellers
The AI analyzes your sales figures, inventory and margins to give you personalized advice. Ask it to evaluate a lot, suggest a price or optimize your reselling strategy.
Expense and cost-buffer tracking
Record expenses and fee assumptions to support one overall net-profit total. Pro and Business sales CSV exports include per-sale estimates after item cost and commission, before global expenses and tax estimates. Margeo does not file taxes for you.
Multi-platform: Vinted, eBay, Depop…
The dashboard shows revenue and sales counts by channel plus one overall net-profit total; it does not show net profit by platform. Pro and Business sales CSV exports include per-sale estimates after item cost and commission, before global expenses and tax estimates.
Offline app (PWA)
Works everywhere — at flea markets, yard sales, on the go, without internet. Your data syncs automatically when you reconnect. Installable on mobile like a native app.
4 interactive charts
Photos & receipts
Auto PDF reports
Multi-user
English tools
Try the profit calculator
Dedicated pages for international reseller searches
Open the page that matches your intent: profit calculator, inventory tracker, marketplace fees, Vinted tracking, spreadsheet alternative, pricing or security.
Flipping profit calculator
Estimate net margin, ROI, fees and tax buffers before buying a lot.
Reseller inventory tracker
Track lots, items, status, stock value and sell-through.
eBay reseller fees calculator
Model marketplace fees, shipping, net profit and ROI.
Vinted reseller tracker
Track Vinted listings, monthly sales, profit and sell-through.
Spreadsheet alternative
Replace fragile tabs with a resale workflow built for mobile.
Security and portability
Understand account access, exports, Firebase hosting and Stripe billing.
Who is it for?
Which buy & resell app fits your reseller profile?
Whether you sell clothing, tech, collectibles or flea-market finds, Margeo adapts to your resale workflow.
👗
Clothing & fashion resellers
For thrift flips, clothing bundles and sneakers, simulate a deal before buying and track finalized Vinted sales imported from supported Pro/wallet CSVs.
📱
Tech & electronics resellers
Smartphones, consoles, PCs, components. Simulate the profitability of each purchase and sell on eBay, Facebook Marketplace or your own channels.
🎮
Video game & retro resellers
Games, retro consoles, collector items. Track your stock per lot, identify the fastest-selling items and optimize your pricing.
🪑
Antique dealers & bargain hunters
Furniture, decor, vintage objects. The app works offline at flea markets and yard sales — add your purchases even without internet.
📦
Bulk lot & pallet buyers
Amazon return lots, customer return pallets, wholesale lots. Break down each lot into individual items, track resale piece by piece.
🏪
Growing resale businesses
Scaling from side hustle to serious resale business? Margeo keeps your inventory, expenses, sales and reports organized.
How it works
Start your buy & resell business in 3 steps
1
Add your bulk purchases
Record your purchases (lots, pallets, individual items) with purchase price, date and photos. Break down each lot into individual items.
2
Sell on your platforms
List on Vinted, eBay, Depop, Facebook Marketplace or sell in person. Margeo tracks each item: in stock → shipping → sold. Stats per platform.
3
Analyze your margins
Review marketplace revenue and one overall net-profit total from recorded costs and fees. Pro and Business sales CSV exports include per-sale estimates; French micro-BIC contributions are estimated separately.
Pricing
The most affordable buy & resell software
Start free, upgrade to Pro when your business takes off.
Starter
$0
Free forever
- 10 items in stock
- 3 purchase packs
- 5 simulations / month
- 3 AI messages / day
- CSV / JSON export
- Offline mode
- Full profit tracking
- External connector: Pro and Business only
Popular
Pro
$9.99/mo
For active resellers
Pays for itself in a few sales
- Unlimited items
- Unlimited packs
- Unlimited simulations
- Unlimited AI
- Advanced expense and cost-buffer tracking
- Photos & receipts
- Advanced statistics
- Claude connector (MCP)
15-day Pro free trial, card required — see terms
Business
$24.99/mo
For serious pros
- Everything in Pro
- Multi-shop (5 shops)
- Multi-user (3)
- Auto PDF reports
- Priority support
- Early access to new features
Billed at signup — no free trial. Cancel anytime.
FAQ
Official sources
The thresholds, rates and obligations quoted on this page come from the French administration's own publications (the 1% versement libératoire and the social contributions assessed on turnover). Links verified on 8 November 2026. This page is a practical guide: it does not replace the advice of an accountant on your own situation.
FAQ
Frequently asked questions about reselling
What is the best free software for reselling?
Margeo is a free app built specifically for resellers. It lets you manage inventory, track sales across marketplaces, calculate margins, follow expenses and export your data. The Starter plan is free forever, no credit card.
How do you calculate margin when reselling?
To estimate a resale margin, subtract purchase cost, shipping, packaging, marketplace fees and other expenses from the selling price. For a French micro-business, social contributions are estimated separately on turnover; the 1% versement libératoire applies only if you opt in and meet the eligibility conditions. Margeo’s simulator estimates a scenario from the inputs you provide. In the app, the dashboard reports one overall net-profit total from recorded costs and fees, not after-tax net profit for each sale or marketplace.
How do I manage resale records without a spreadsheet?
Use lots for purchases, items for inventory, sale records for each marketplace and expenses for recurring costs. Margeo keeps those records connected so exports and reports remain readable.
Does Margeo work with several marketplaces?
Yes. Margeo supports Vinted, eBay, Facebook Marketplace, in-person sales and custom platforms. Margeo shows sales count and revenue by platform. Its net-profit total is global, not split by channel; French tax estimates are separate.
Can I adapt Margeo to my local taxes?
Yes. Use the simulator and expense fields with your own tax or fee assumptions. Country-specific obligations differ, so Margeo focuses the English workflow on clean records, margin visibility and exportable data.
Does Margeo work offline at flea markets?
Yes, Margeo is a Progressive Web App (PWA) that works without an internet connection. You can add purchases, check your inventory and verify your margins even at flea markets, car-boot sales or on the move with no signal. Data syncs automatically when you’re back online.
What types of reselling is it suited for?
Margeo is built for every kind of buy-and-resell: clothing and thrift, tech and electronics, video games and consoles, furniture and decor, books, jewellery, flea-market finds, Amazon lots, return pallets… You customise your catalogue, your sales platforms and your categories to fit your niche.
Is my data secure?
Your data is stored on Google Firebase (Google Cloud infrastructure), encrypted and accessible only by your account. No other user can see your data. Margeo is GDPR compliant and hosted in Europe.
Does Business include a free trial?
No. Business is billed at signup and has no trial. The 15-day, card-required trial is for monthly Pro only; annual Pro has no trial. One trial per account.
No risk, no credit card
The Starter plan is free forever. Your data stays yours, exportable any time in CSV/JSON. Cancel your Pro subscription in 1 click. EU-hosted, GDPR compliant.
Your next lot deserves a number-backed decision.
Create your account in 2 minutes. Add a lot, see your real net margin. You won’t go back to Excel.
Free forever
No card
2-min setup
Cancel anytime