Privacy

Your table stays in the page.

This notice describes the source release dated 20 October 2026. Local arithmetic is separate from the technical requests needed to serve a website.

Pasted CSV and selections

The script reads your pasted text and selected column positions in your browser. It does not upload the table, append it to a URL, submit it to a server, store it in cookies or save it in browser storage. There is no account, file upload, remote parser or cloud project. Reloading restores the small craft example rather than retrieving previous data.

Controls have no form names that could serialize the table or selections into a native GET query if JavaScript is unavailable. Without JavaScript, the interactive grouping is unavailable but the guide and examples remain readable. The browser may normalize pasted line endings before the script receives the textarea value; this tool does not retain original clipboard or file bytes.

Memory, copy and local downloads

Reading columns and calculating keep the bounded parsed table and current result in page memory. Editing the CSV clears the prior result and cached column choices. No background save or history database is implemented.

Copy all group notes attempts browser clipboard access only when you choose it. It supplies the current complete result notes, including exact group keys and header labels. If access fails, a local text box offers manual copying. Input edits clear that box, and a delayed clipboard response cannot label an old result as current.

Text notes and JSON downloads are generated locally through temporary browser object URLs. The files contain selected positions, original header labels, keys, counts, sums and assumptions. They include all groups rather than just the current table page. No external export service receives them. Decide where to keep or share the result; the tool cannot retrieve an earlier table for you.

Hosting and other websites

The site is intended for static Cloudflare Pages hosting. The provider receives technical requests such as the requested URL, network address and browser/request information to serve files and operate its network. This source does not control every provider log or security process. Read Cloudflare's privacy policy for its own practices.

Reference links contact the other website when followed. No remote fonts, embedded media, analytics beacons, advertising scripts or consent-platform loaders are included in this release. Ownership/publisher metadata and ads.txt prepare identification only; they do not load ads or prove approval or serving. Later reporting or advertising must match an updated notice and any required exact-host consent setup before loading.

Optional contact

Email goes through an existing shared forwarding alias and email providers. Please use a small invented table for a bug report rather than private customer or identifying data. For a correction or privacy question, use contact. This notice describes implemented behaviour rather than promising that provider technical logs never exist.