Blur Image Online Free Tool
Blur any Image in your browser. Free, offline, client-side blur - instant preview, secure, no uploads. Works on JPG, PNG, WebP, GIF.
Upload an image and apply a uniform blur. Instant preview, adjustable intensity, 100% client-side — no uploads.
Click or drag an image here
JPG · PNG · WebP · GIF
How to Use Blur Image Online Free Tool
- Upload your image. Click the dashed upload area or drag a file from your desktop. JPG, PNG, WebP, and GIF are all supported. The preview appears immediately - nothing is uploaded to any server.
- Adjust the blur. Move the slider from 1 (subtle) up to 20 (heavy). The preview re-renders live on every change, so you can compare intensities before committing.
- Commit the blur. Click "Apply Blur" or press Ctrl+Enter (Cmd+Enter on Mac). A success toast confirms the blur has been applied at the current slider value.
- Read the stats line. Below the preview you'll see image dimensions, megapixel count, and the current blur radius - handy when dialling in the same effect across multiple photos.
- Copy or download. "Copy image" puts the blurred PNG onto your clipboard (Chrome / Edge / Firefox). "Download PNG" saves the file. Safari users should prefer Download.
- Start over with Clear. "Clear" resets the file input, preview, slider, and stats back to the initial state so you can load another photo without reloading the page.
Frequently Asked Questions
Is my data secure?
Yes. All image processing happens 100% client-side in your browser using the Canvas API. Your images are never uploaded to any server or stored anywhere.
Is this tool free?
Yes. This image blur tool is completely free with unlimited use, no watermarks, and no registration required.
Does this work offline?
Yes. Once the page loads, you can blur images without an internet connection since all processing happens in your browser.
What image formats are supported?
JPG, PNG, WebP, and GIF are officially supported. Any other format your browser can decode via the <img> tag (such as AVIF on modern Chromium) will also work.
How does the blur intensity slider work?
The slider maps directly to the CSS/Canvas blur radius in pixels (1-20). Values 1-5 give a subtle blur; 6-12 feel like a shallow depth of field; 15-20 are strong privacy-grade blurs that hide text and faces completely.
Is the blur reversible once downloaded?
No. Gaussian blur discards high-frequency detail, so the original pixels cannot be recovered from the blurred PNG. Keep a copy of the original file if you might want the sharp version later.
Can I blur only part of the image?
This tool blurs the entire image uniformly. If you need to hide just a face or a licence plate, use our dedicated “Blur Face in Image” tool which supports manual region selection.
What is image blur used for?
Blurring is used for privacy (hiding identifying detail), aesthetics (soft backgrounds, dreamy looks), UI design (placeholder backdrops, modals behind frosted glass), and compression pre-processing (reducing detail before aggressive JPEG encoding).
What keyboard shortcuts does it support?
Ctrl+Enter (or Cmd+Enter on Mac) triggers “Apply Blur” without needing to click the button. Moving the slider via arrow keys also re-renders the preview live.
What file format is the download?
The download is always a PNG so the blurred output stays crisp regardless of the source format. PNG also preserves alpha for transparent source images.