Free tools for Etsy & Shopify sellers

No signup. No upload to anyone's server. No "free trial that becomes a subscription." Just instant tools that solve one specific seller problem each, fast.

100% free, forever Runs in your browser No data collected

Etsy seller tools

Fee calculators and formatting utilities, country-aware where it matters.

Etsy

Etsy Fee Calculator

See your real profit on any Etsy sale. Country-aware payment processing rates, listing fees, transaction fees — all calculated as you type.

Open calculator →

Etsy

Offsite Ads Calculator

Track the $10K threshold. Compare profit with vs. without offsite ads. Find the price you need to charge to stay profitable on either side.

Open calculator →

Etsy

Description Formatter

Paste your description, see how Etsy will display it to buyers. Fix line breaks, add bullets and dividers. Skip the copy-paste-from-Word workaround.

Open formatter →

Shopify seller tools

Replace paid Shopify apps with free, browser-only equivalents.

Shopify

Product CSV Cleaner

Drag a messy supplier CSV. Get a clean, UTF-8, Shopify-import-ready file out the other side. Encoding fixes, column mapping, validation — all in your browser.

Open cleaner →

Why these tools exist

Built for one job each

Each tool solves one specific problem really well. No bloated all-in-one platform asking for your email.

Your data stays put

Everything runs in your browser. Open DevTools → Network tab to verify nothing leaves your device.

Calculate as you type

No "Submit" button. Results update instantly so you can experiment with different scenarios.

Shareable URLs

Configure a calculator, copy the link, paste it in Slack or a forum. The recipient sees your exact scenario.