Are my files uploaded?

No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.

Is it free? Are there limits or watermarks?

Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.

Does it work offline?

Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

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Blur & Redact Image

Auto-detect faces or paint areas to blur or pixelate.

Free, no uploads, no sign-up. Runs 100% in your browser.

How Blur & Redact Image works

Blur & Redact Image runs entirely in your browser. Auto-detect faces or paint areas to blur or pixelate. Under the hood it uses Shape Detection API (the browser’s native face detector where available; manual painting works everywhere). Your files are read into this tab’s memory, processed on your own CPU, and handed back to you as a download. Nothing is sent to a server.

Input: JPG, PNG, WEBP, GIF, BMP.

How to use Blur & Redact Image

Drop one or more images onto Blur & Redact Image.
Tune the options. The before/after preview updates live.
Process the batch.
Download a single image, or everything as a ZIP.

Tips

Most image tools accept many files at once.
WebP and AVIF give much smaller files than JPG at the same visual quality.
Set a default image quality in Settings. Tools that do not choose their own quality use it.

Blur & Redact Image FAQ

Are my files uploaded?: No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
Is it free? Are there limits or watermarks?: Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
Does it work offline?: Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

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