domainless · convert

Your files never leave this device

Most "free online converters" work by uploading your file to their server, converting it there, and handing back a download. That means a stranger's machine holds a copy of your photo, scan, or document — and you're trusting them to delete it. This converter is built the opposite way.
01What actually happens

1. You pick a file

It's read straight into your browser's memory — not sent anywhere. There is no upload step.

2. Your browser converts it

Images are decoded and re-encoded by your browser's graphics engine; audio by its Web Audio engine; PDFs and JSON/CSV are assembled by plain JavaScript — all built into the browser, running on your machine.

3. You download the result

The converted file is created locally and saved by your browser. The server only ever sent you the page.

02How you can tell
Turn off your network after the page loads and the converter still works — proof that nothing is being uploaded. This is the same principle behind the rest of the domainless privacy tools, like /encrypt and the VPN: do the sensitive work on your device, not someone else's. Back to the converter →