Privacy Policy
Short version: the calculator runs entirely in your browser. We don't have a server that receives your numbers, we don't ask who you are, and we don't sell anything about you.
What we collect
Nothing that identifies you. There is no account, no login, and no form that sends your data anywhere.
- Your calculator inputs (prices, costs, target profit) are processed in your browser to show results, and the last values are saved locally on your own device (browser
localStorage, orchrome.storage.localin the extension) so the tool remembers them next time. They never leave your device and we cannot read them. - No personal information — no name, email, address, payment details, or marketplace login. This tool never connects to your eBay, Poshmark, Mercari or Depop account.
- No tracking cookies and no advertising profiles.
Analytics
This website may use privacy-respecting, cookie-free aggregate analytics (Cloudflare Web Analytics) to count page views and understand which calculators are useful. It does not use cookies, does not fingerprint visitors, and does not collect personal data. The Chrome extension uses no analytics at all.
Outbound links
We link to the official marketplace fee pages so you can verify every number. If affiliate links to reseller tools are ever added, they will be clearly disclosed on the page; visiting them is entirely optional and they never change the calculator's results.
Data we'd have to hand over
Because we never receive your inputs, there is no database of user data to subpoena, breach, leak, or sell. The math is the product; your numbers stay yours.
Contact & changes
If this policy changes, the updated version will be posted on this page. This site is an independent tool and is not affiliated with, endorsed by, or sponsored by eBay, Poshmark, Mercari or Depop.