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OnDevice Tools

Privacy

The short version: OnDevice Tools has no backend, so there is nowhere for your data to go.

What we collect

Nothing. OnDevice Tools is a static site. There is no account system, no analytics script, no advertising network and no server-side processing of anything you type, paste or upload.

How the tools work

Every tool runs as JavaScript inside your browser tab. When you format JSON, compress an image or merge a PDF, the work happens on your own device using standard web APIs. The file never crosses the network.

What is stored on your device

Three small values are kept in your browser's local storage so the site remembers your preferences between visits:

  • qt.theme — whether you chose light, dark or system appearance.
  • qt.favorites — the list of tools you saved.
  • qt.recent — the last few tools you opened.

These never leave your browser. Clearing your site data removes them permanently, and the site works exactly the same without them.

Third-party requests

The site loads its web font from Google Fonts. If you would rather avoid that request entirely, blocking it changes nothing except the typeface. Once the service worker has cached the app, OnDevice Tools works fully offline.

Contact

Questions about this page, or a tool behaving unexpectedly? Head back to the home page and use any tool — there is no form here that would send us anything.