Need to convert a JPEG to PNG? You search the web, pick the first result, and upload your file. The converted image downloads within seconds. Simple — but what actually happened to your file in those few seconds?

Your Files Go to a Server You Don't Control

The vast majority of online image converters work by uploading your file to a remote server. The server runs the conversion, stores the result, and sends it back. The problem is what happens between those steps — and after.

The Alternative: Convert Locally

WebConverter.app takes a fundamentally different approach. Your files never leave your device. The conversion runs entirely inside your browser — no server involved.

  • No upload — your file is read from disk into browser memory
  • No server processing — there is no back end
  • No storage — nothing was ever stored remotely
  • No third-party access — your data stays in the browser tab

WebConverter.app supports PNG, JPEG, BMP, TGA, HDR, EXR, and KTX2 — all running locally, with zero data transfer.

Try WebConverter.app — your files never leave your device.

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