Privacy

Your pairs stay in the page.

This notice describes the source release dated20 October2026. Local calculation is separate from technical website-hosting requests.

Input and memory

The script reads pasted start,end pairs in your browser. It does not upload them, append them to URLs, store them in cookies or save them in browser storage. There is no account, remote parser, file upload, cloud project or background history database. Reloading restores the default example.

Controls have no form names that could serialize pairs into a native GET query without JavaScript. Interactive calculation needs JavaScript; the guide and examples remain readable. A browser textarea may normalize pasted line endings before the script receives them. The site does not preserve original file/clipboard bytes.

Copy and local downloads

Copy complete notes attempts clipboard access only after you press it. Notes include all components, totals and assumptions. On failure a local textarea offers manual copying. Input edits clear old result/export state, and late clipboard responses cannot label an old result as current.

Text/JSON downloads use temporary browser object URLs and include every component, including later pages and isolated points. No external export service receives the data. Decide where to keep or share these local files; this tool cannot retrieve them for you.

Hosting and references

Static Cloudflare Pages hosting involves technical requests that the provider receives, potentially including network address, requested URL and browser/request information. This source does not control every provider security process or technical log. Read Cloudflare's privacy policy for its practices.

Reference links contact other websites when followed. This release has no remote fonts, embedded media, analytics beacons, ad scripts or consent-platform loaders. Publisher/ownership metadata and ads.txt prepare identification only; they do not load ads or prove review approval, serving or earnings. Later reporting or advertising must have an accurate notice and required exact-host consent coverage before loading.

Optional email

The public contact address is an existing shared forwarding alias. Email passes through providers separately from local calculation. Use invented coordinates for bug reports, rather than private client, project or identifying data. Use contact for a privacy question or correction. Calculating requires no conversation.