Privacy Policy

This privacy policy describes how OpenFeeCalculator, operated by Alex Builds Studio, handles information when you use the public website at openfeecalculator.com. The calculators run in your browser. All tools on this site are free and do not require an account or a paid plan. If we later add a signed-in feature, this page will be updated on the same day the new behavior ships.

Calculations and local saves

Item prices, shipping amounts, costs, tax figures and other values you type into a calculator are processed in your browser. We do not operate a backend that stores those entries as a sales ledger or ties them to an account on our servers. If you use Save in this browser, the summary is written to localStorage on your device only and can be cleared from the same screen. If you take a screenshot or email yourself a result, that copy is yours.

Logs, cookies and analytics

Like most websites, the host or content-delivery network may record standard technical logs such as IP address, time, URL and browser type, for security and reliability. Those logs are not used to rebuild your calculator inputs. Google Analytics 4 and Microsoft Clarity load only when the operator has set NEXT_PUBLIC_GA_ID or NEXT_PUBLIC_CLARITY_ID. If those variables are empty, the scripts are not injected. When they are set, those vendors may use cookies or similar storage under their own policies, and the site may send product events such as calculate, platform switch, copy or share, language switch, outbound clicks and FAQ expands to those vendors. You can block or clear cookies in your browser.

Advertising cookies

Google AdSense loads only when the operator has set NEXT_PUBLIC_ADSENSE_CLIENT, for example a ca-pub identifier. If that variable is empty, the advertising script is not loaded, ad slots are not rendered, and the page does not reserve empty space for ads. When the identifier is set, Google may use cookies or similar storage to serve and measure ads under Google's advertising policies, and an ads.txt file is published for that publisher account. Ads are placed beside or below the calculator, not over the inputs. This site does not sell a personal email list.

Email and contact

If you email alexbuildsstudio@gmail.com, we receive whatever you include in the message, and we keep it only as long as needed to reply and to maintain a record of a correction or a support request. There is no paid checkout on this site and we do not collect payment card numbers. Questions can be sent to the same address.

International visitors and changes

The site is published in English and Chinese and is aimed at US marketplace fee rules. Visiting from another country still uses the same calculators and the same policy. We may update this policy; the date at the foot of legal pages follows the site-wide dateModified of 11 November 2026 until a later revision.

How to use this calculator

1. Use the calculators without creating an account. Every tool is free and a single-sale estimate does not require a login.
2. Treat analytics as optional on this deployment. GA4 and Clarity scripts load only if the corresponding environment variables are set.
3. Treat ads as optional on this deployment. AdSense loads only if NEXT_PUBLIC_ADSENSE_CLIENT is set; otherwise no ad slots appear and layout does not shift.
4. Email us about privacy questions. alexbuildsstudio@gmail.com

Frequently asked questions