Your source has a clear boundary.

Last updated 30 July 2026

Local use

CSV text is parsed in your browser. Signed-out drafts and blueprints remain in that browser’s local storage and are not uploaded to us.

Signed-in workspaces

When you explicitly save while signed in, the validated CSV, mappings, dashboard settings, and source versions are stored in an owner-scoped Firebase workspace so they can be reopened on another device.

Read-only shares

A share link publishes a bounded dashboard snapshot containing aggregates, trend and category values, and up to eight recent mapped rows. It does not publish the original CSV, account details, or source version history. Links expire after 30 days and can be revoked sooner.

Service data

Firebase provides authentication and storage, Upstash can coordinate abuse limits, Resend delivers support mail, Vercel hosts the service and records aggregate Web Analytics, and Sentry receives browser errors with replay and performance collection disabled.

Control

The Account view provides a complete JSON export and permanent deletion of cloud blueprints, versions, shares, profile, and Firebase identity.