Your project stays
on your side.
Last updated October 23, 2026.
Calculator inputs
Measurements and stitch counts are processed in the current browser tab. This version does not send them to a calculation server, save them in a cookie or browser storage, or put them in the page URL. Reloading or leaving the page clears the form state unless your browser restores it.
Copies and printed plans
The Copy button places a result on your clipboard when your browser permits it. Printing uses your browser’s print dialog. Downloaded issue reports are saved on your device and are not automatically submitted.
Hosting and external links
This site is hosted using Cloudflare Pages. Like other web hosting, the hosting provider may process connection information such as IP addresses, request paths and technical logs to deliver and secure the site. That hosting behavior is separate from the calculator code. Links to other websites follow their own privacy practices.
Advertising and analytics
This version does not load AdSense, Google Analytics or other advertising or analytics scripts. There are no site-added tracking cookies. If these services are introduced, their purposes and any applicable consent choices will be described before activation.
Questions
The issue-report page creates a local text report. No report is sent or received until you choose to share it through the channel where you found this site. Avoid adding personal data.