QuantSeller: Profit Tools

Know what each product really earns before you set a price, buy inventory, run a promotion, or begin production.

QuantSeller is an offline-first profit, pricing, production, and inventory workspace for Etsy makers, Amazon sellers, and e-commerce businesses. Records stay on your device. No QuantSeller account, marketplace login, OAuth connection, or seller API is required.

18 OFFLINE SELLER CALCULATORS

Etsy and handmade tools:
- Etsy True Profit combines price, discounts, materials, labor, packaging, shipping, listing fees, transaction fees, payment processing, Offsite Ads, taxes, and other costs.
- Handmade Pricing builds a target price from costs, fees, and desired margin.
- Etsy Offsite Ads Scenario compares organic and advertised-order profitability.
- Shipping Profit shows how customer-paid and seller-paid shipping affect profit.
- Discount Floor calculates the lowest price that protects your target.
- Labor & Capacity converts work time into labor cost and production capacity.

Amazon seller tools:
- Amazon FBA Profit estimates revenue, referral and fulfillment fees, storage, inbound shipping, advertising, returns, taxes, and net profit.
- FBA ROI Check measures ROI, margin, and inventory return.
- Amazon Monthly Profit plans monthly sales, costs, and profit.
- Online Arbitrage Deal Check evaluates buy cost, price, fees, ROI, and deal quality.
- Amazon Referral Fee estimates category-based referral costs.
- FBA vs FBM compares fulfillment methods.
- PPC Break-even ACOS & TACOS calculates advertising break-even points.
- Reorder & Cash estimates stock cover, reorder quantity, and required cash.

General commerce tools:
- E-commerce Break-even calculates a sustainable selling price.
- Discount & Campaign Planner compares promotion scenarios.
- Digital Product Earnings Planner estimates downloadable-product earnings.
- Product Idea Score compares margin, demand, competition, effort, and risk.

MATERIALS, RECIPES, AND PRODUCTION

- Create raw materials with unit, cost, stock, reorder point, supplier, and notes.
- Build product recipes and bills of materials (BOMs).
- Include labor, waste, packaging, overhead, amortization, advertising, returns, taxes, and shipping.
- Record production runs that deduct materials and increase finished stock.
- Review low-stock warnings and estimated inventory value.
- Record manual stock movements with local history.
- Track orders through production, packing, ready, and completed stages.
- Use preparation checklists for photos, listing content, packaging, and launch tasks.

LOCAL AMAZON INVENTORY PLANNING

Save products locally without connecting Seller Central. Record SKU, ASIN, FBA or FBM, price, cost, fees, stock, average daily sales, lead time, and safety stock. Estimate profit, stock cover, reorder point, recommended reorder quantity, and cash needed.

PRIVATE AND PRACTICAL

- Workspace data remains on the device.
- No account or cloud workspace is required.
- Works without connecting Etsy or Amazon.
- Core calculations and records remain available offline.
- Supports English, Turkish, German, Spanish, French, and Italian.
- Includes light, dark, and system appearance modes.

FREE AND PRO

Every calculator is available in the free version. Free users can create up to 10 records in each limited production area and see banner ads. QuantSeller Pro is an optional one-time purchase that removes ads and unlocks unlimited production records. There is no subscription.

QuantSeller provides planning estimates based on the values and rates you enter. Marketplace fees, tax rules, advertising programs, and platform policies can change. Verify important business decisions using current marketplace documentation and qualified accounting or tax advice.

QuantSeller is an independent seller tool and is not affiliated with, endorsed by, or sponsored by Etsy, Inc. or Amazon.com, Inc.