A short, plain-English explanation of what this toolkit does and doesn't do with your information.
Every calculator in this toolkit runs entirely in your browser. The numbers you type in — load weights, MBL, angles, WLL ratings — are never sent to a server, logged, or stored anywhere outside your own device. There are no accounts, no forms that submit data anywhere, and no backend behind the calculators themselves. This site does use Google Analytics to understand traffic and shows ads through Google AdSense, as detailed below.
None of the values you enter into any calculator are collected, transmitted, or retained — that part still runs entirely in your browser. We store exactly one thing locally on your device:
This toolkit uses Google Analytics to understand how visitors use the site — things like which pages are viewed, how long visits last, and general location and device information. This is separate from the calculators themselves: Analytics can see that a page was viewed, not what you typed into any calculator field.
This toolkit also uses Google AdSense to show ads. Google and its partners may collect and use data to serve and measure ads, including for personalized advertising, subject to your settings at Google Ad Settings.
This site uses Google Analytics to understand how visitors use the site — things like which pages are viewed, how long visits last, and general location and device information. Google Analytics sets cookies to do this and may combine this data with information from other sites and services.
This site also uses Google AdSense to show ads. Google and its partners use cookies to serve ads based on your visits to this and other websites, and to measure ad performance. Google may use this data for personalized advertising, subject to your settings at Google Ad Settings.
You can opt out of Google Analytics using the Google Analytics Opt-out Browser Add-on, and opt out of personalized advertising at aboutads.info/choices. You can also block these cookies entirely through your browser's privacy settings.
Separately, your theme preference is stored using your browser's localStorage, which is different from a cookie — it isn't transmitted to any server and can be cleared any time from your browser's settings.
This toolkit uses three third-party services:
fonts.googleapis.com, which may see your IP address as part of that request. See Google's privacy policy for details.These calculators provide general working checks based on standard formulas and common industry practice — they are not a substitute for a certified lifting plan, manufacturer documentation, or sign-off from a competent person or engineer. Always confirm results against the actual rated equipment, tags, and certificates before any lift.
This toolkit is a general-purpose set of engineering reference calculators, not directed at children, and we do not knowingly collect information from anyone, of any age. Ads shown on this site are not configured to target children.
If this policy ever changes — for example, if a future feature needed to store or send more than a theme preference — this page will be updated and the date at the top will reflect the change.
Questions about this policy can be directed to whoever provided you with this toolkit.