Privacy Policy

One Tool is built local-first. When you import a bank statement or add data to My Finances or My Business, it is parsed and stored on your own device — in your browser's local storage — not uploaded to our servers. We never see your transactions, balances, invoices, or party details.

The only data that reaches us is anonymous usage analytics (which pages and tools are opened, how often) and, if you choose to write in, whatever you include in a feedback or support message.

Statement files (PDF, CSV, Excel) are parsed entirely in your browser using client-side code. The parsed transactions, budgets, investments, and business records are saved to your browser's localStorage / IndexedDB, scoped to this device and browser.

This means: your data doesn't sync across devices unless you export and re-import it yourself, and it is only as safe as the device you're using — anyone with access to your browser profile can see it. Uninstalling the app doesn't apply here since there's nothing installed; clearing your browser's site data for onetool removes everything.

We use privacy-friendly analytics to understand which tools are used and where people run into friction — page views, session duration, and broad device/browser type. This data is aggregated and anonymized; it does not contain your financial figures, statement contents, or anything you type into a tool.

A small number of functional cookies may be set to remember preferences like theme (light/dark) and which workspace you last opened. You can block or clear cookies from your browser settings at any time without losing access to the app.

We keep our vendor list short on purpose:

• Vercel — hosts the app and serves static assets. Standard server logs (IP, request path, timestamp) are generated for uptime and security, in line with Vercel's own privacy policy.
• Analytics provider — aggregated, anonymized usage metrics only, as described above.

We do not sell, rent, or share your data with advertisers, data brokers, or any third party for marketing purposes — because for financial and business data, there is nothing of yours on our servers to share in the first place.

Since your financial and business data lives in your browser, you are always in control of it:

• Export your data from within My Finances / My Business at any time.
• Delete individual records directly in the app.
• Clear everything at once by clearing this site's data from your browser settings, or using "Reset workspace" inside the app if available.

If you've sent us a support or feedback email, you can ask us to delete that correspondence by writing to the address below — we'll remove it from our inbox and any ticketing tool we use.

If our data practices change in a way that affects you — for example, if we ever introduce optional cloud sync — we will update this page and call out the change clearly before it takes effect. We won't move your data off-device silently.