Image Blur Tool

Blur any image in your browser. Adjustable Gaussian blur radius. Download as PNG. No upload — files stay on your device. Free, private, in-browser.

How to use

  1. Enter inputs — Provide the required values for the Image Blur Tool.
  2. Get the result — Output updates instantly as you adjust inputs.
  3. Copy or export — Copy the result to your clipboard with one click.
  4. Reuse anywhere — Use the output in your project, document, or workflow.
; ctx.drawImage(img,0,0); }; img.src=src; }, [src,radius]); const download = () => { const c=canvasRef.current; if(!c) return; const a=document.createElement("a"); a.download="blurred.png"; a.href=c.toDataURL(); a.click(); }; const steps = [ { number: 1, title: "Enter inputs", description: "Provide the required values for the Image Blur Tool." }, { number: 2, title: "Get the result", description: "Output updates instantly as you adjust inputs." }, { number: 3, title: "Copy or export", description: "Copy the result to your clipboard with one click." }, { number: 4, title: "Reuse anywhere", description: "Use the output in your project, document, or workflow." } ]; const faqs = [ { question: "Is the Image Blur Tool free?", answer: "Yes. All Zubac Tools utilities are free with no sign-up." }, { question: "Is my data sent to a server?", answer: "No. Everything runs locally in your browser — your inputs never leave your device." }, { question: "Does it work offline?", answer: "Yes, after the first load the tool works without an internet connection." }, { question: "Can I use it on mobile?", answer: "Yes. The interface is responsive and works on phones, tablets, and desktops." } ]; const relatedTools = [ { "title": "Image Filters", "href": "/tools/image-filters" }, { "title": "Image Grayscale", "href": "/tools/image-grayscale-converter" }, { "title": "Image Inverter", "href": "/tools/image-inverter" }, { "title": "Image Border", "href": "/tools/image-border" } ]; return ( Image Blur Tool

Privacy-first • Runs locally in your browser

Upload an image, drag the slider, download the blurred result. No upload.

onFile(e.target.files?.[0])}/> {src && <> Blur radius: {radius}pxsetRadius(+e.target.value)} className="w-full"/> Download Blurred Image }

A blogger blurs an in-progress UI screenshot before publishing to hide confidential customer names.

How the Blur Works

The tool uses the Canvas filter API with blur(npx), which is a fast browser-native Gaussian approximation. Output is rendered locally and never uploaded.

Common Uses

  • Anonymizing screenshots
  • Hero/banner backgrounds
  • Privacy-friendly previews
"} />

About Image Blur

Blur is the simplest way to redact sensitive areas, create soft backgrounds for text overlays, or hide identifying details before sharing a screenshot. This tool applies adjustable Gaussian blur entirely in your browser via the Canvas API — your image is never uploaded.

When Blur Is Enough (and When It Is Not)

reversible with the right tool — research has shown blurred license plates and faces can sometimes be partially recovered. For true redaction (medical records, financial documents), use solid black boxes instead. Blur is for aesthetic or low-risk privacy, not adversarial." }} />

Blur Radius and Performance

Comparing to CSS filter: blur()

Frequently asked questions

Is the Image Blur Tool free?

Yes. All Zubac Tools utilities are free with no sign-up.

Is my data sent to a server?

No. Everything runs locally in your browser — your inputs never leave your device.

Does it work offline?

Yes, after the first load the tool works without an internet connection.

Can I use it on mobile?

Yes. The interface is responsive and works on phones, tablets, and desktops.

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