The 30-Second Proof

Here is the simplest, most convincing way to verify that your files stay on your device:

How It Actually Works

When you first visit blur-face.com, your browser downloads a small AI model (about 6 MB) — the same way it downloads any other file on a webpage. This is the only network request related to the tool itself.

After that, everything runs inside your browser using a technology called WebAssembly (WASM). Your photo or video is loaded directly into your browser's memory and never touches our servers.

When you click Download, the processed image is saved straight to your device — again, no server involved.

What the Network Tab Shows

For the technically curious: open your browser's Developer Tools (F12), go to the Network tab, and filter by 'Fetch/XHR'. Process an image. You will see the AI model files loading — but zero requests carrying your image data.

The only outbound requests are:

• The AI model weights (downloaded once, then cached)
• Google Analytics page-view data (we track visits, not your images)
• Nothing else

An Honest Note About Analytics

We use Google Analytics to understand how many people visit the site and which tools they use. This tracks page-view behavior — not your photos, not your files, not any personal data from the images you process.

Your images are never part of any analytics payload. Ever.

Why We Built It This Way

Most online tools process your files on their servers because it's easier to build and lets them charge for API usage. We made the harder technical choice because we believe privacy tools should actually be private.

When you are blurring faces — whether to protect a child's identity, a journalist's source, a patient's medical record, or a witness's face — the last thing you should have to worry about is whether your sensitive file is sitting on someone else's server.

It isn't. And now you can prove it.