Free-first seller tools

Know your numbers.
Grow with confidence.

SellerVitals helps online sellers understand profit, fees and operational decisions. Use nine free calculators and product checks today; the remaining tools are clearly marked as planned.

Explore nine free tools →View all 15 tools

No signup for free calculatorsRuns in your browserClear assumptions

HOW WE THINK ABOUT A SALE

Illustrative $50 sale · not your store data

$15.20

Estimated profit after example expenses

See the working Ecommerce Profit Calculator to enter your own values.

Available now

Start with a free seller tool

These tools run locally in your browser, including supported file checks. No seller account, API credit or payment is needed.

Free · usable

Amazon Listing Doctor

Actual suppression status needs authorized seller data

Open calculator →

Free · usable

Etsy SEO Checker

No unapproved Etsy scraping or private-shop claims

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Free · usable

eBay Seller Profit Checker

Understand fees, postage and estimated earnings.

Open calculator →

Free · usable

Ecommerce Profit Calculator

Find your per-order net profit and margin.

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Free · usable

Shopping Feed Validator

Local CSV/XML checks; live Merchant Center errors require authorization

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Free · usable

Product Image Quality Checker

Deterministic image diagnostics, not subjective AI scoring

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Free · usable

Inventory Forecasting Tool

Forecasts are estimates based on user-supplied history

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Free · usable

Shipping Cost Comparison Tool

User-supplied rates free; live carrier feeds may cost

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Free · usable

Return & Refund Loss Calculator

Measure the full economic impact of a refund.

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Transparent roadmap

All 15 tools stay in scope

These additional tools are planned for subsequent phases; links appear only when a real working version is ready.

Planned