Your spreadsheet stays with you.

Files and app preferences

The hosted GridCraft app opens files from your device and processes them in your browser. ZeninData has no workbook upload endpoint, user accounts, AI API or cloud save service in this version. Interface settings may be stored in your browser’s local storage. Saving produces a download.

Website delivery

Cloudflare delivers this website and may process request information, such as IP addresses, for delivery, security and operational purposes under its own policies. We have not added advertising, analytics trackers or third-party fonts to this version.

External links

Links to GitHub and other upstream resources take you to services with their own policies. We do not send workbook contents through those links.