Cookie Settings
You can manage your cookie preferences here. Essential browser storage is always active to keep the site working. Optional cookies can be turned on or off below.
What are cookies?
Cookies are small text files stored in your browser when you visit a website. They help sites remember information between page loads, like your theme preference or language settings. Cookies cannot run code or carry viruses.
BlinkCalc itself stores your settings in your browser's local storage rather than in cookies. Cookies are set only by optional third-party services, Google Analytics and Google AdSense, after you enable them, to improve the site and display advertisements. We do not sell cookie data to third parties. You can manage or withdraw your cookie preferences at any time using the controls on this page.
Manage preferences
Essential browser storage
Always activeBlinkCalc keeps a few settings in your browser's local storage, which is not a cookie: your theme (light or dark mode), the choices you make on this page, and, on tools that use them, preferences such as your selected currency or recently picked colours. They stay in your browser, are not sent to BlinkCalc or third parties, and cannot be turned off here. You can clear them through your browser's site data settings.
Analytics cookies
Analytics cookies help us understand how visitors use BlinkCalc, such as which tools are most popular and how users navigate the site. We use Google Analytics, which may collect information such as IP address, device type, browser, pages visited, scroll depth, time on page, and clicks, and set analytics cookies. BlinkCalc removes calculator values from the page addresses it sends to Google Analytics. Google Analytics is optional and loads only while this toggle is on. Turning it off saves your choice and reloads the page if Google Analytics has already loaded, so it stops running. Data already sent before you turned it off is not removed by this setting.
Advertising cookies
BlinkCalc uses Google AdSense to display advertisements only when advertising is enabled here. Google may use cookies and similar technologies to show personalised ads based on your browsing behaviour. Turning advertising off saves your choice and reloads the page if AdSense has already loaded, so it stops running. Data already sent is not removed by this setting.
Your privacy choices
You can change these preferences at any time. Most browsers also let you block or delete cookies and other site data entirely. Note that clearing or blocking site storage may affect how the site looks and works (for example, your dark or light mode preference and your cookie choices may not be remembered).
For full details on how BlinkCalc handles your data and uses cookies, please read our Privacy Policy.