Privacy Policy

Last updated: August 2026. OnDeviceFiles is built to require as little trust as possible: every file you process stays on your own device. This policy explains exactly what does and does not happen with your data.

The short version

• Your files are never uploaded. All compression and conversion runs locally in your browser using WebAssembly.
• We have no accounts, so we hold no personal profiles.
• You can verify our claim yourself: disconnect from the internet — every tool keeps working.

File processing

All tools on this site operate entirely client-side. When you select a file, your browser reads it from disk, processes it in memory using WebAssembly or standard browser APIs, and offers the result back as a download. No file content is transmitted to us or to any third party at any point. Closing the tab erases everything.

What we collect

• No personal data. There are no accounts, sign-ups, or forms that ask for your identity.
• No tracking cookies from us. This site sets no first-party cookies of its own.
• Anonymous traffic metrics. We use Cloudflare Web Analytics, which measures page views without cookies and without fingerprinting individual visitors. No personally identifiable information is collected.

Third-party services

This site is hosted on Cloudflare's global network. Cloudflare processes standard request metadata (such as IP address and user agent) for security and delivery purposes under its own privacy policy. We do not send them any information about the files you process, because those files never leave your machine.

Advertising

Currently this site shows no advertising. If advertising is ever introduced, this policy will be updated first, and any ad network used will be disclosed here along with its data practices.

Changes to this policy

If this policy changes, the updated version will be posted on this page with a new "Last updated" date. Material changes affecting how the site behaves will be highlighted on the homepage.