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Our free Blur Image tool lets you add professional blur effects to your images with real-time preview. Adjust the blur intensity from 1px to 25px and see changes instantly as you move the slider — or jump straight to a Light, Medium, or Strong preset. Perfect for creating background blur, masking sensitive information, or adding creative effects. All processing happens locally in your browser — no uploads, no signup. Upload PNG, JPG, WEBP, BMP, or GIF files up to 50MB; your blurred result downloads as a PNG.
Add professional blur effects with real-time preview and complete control.
See blur changes instantly as you adjust the slider, from 1px to 25px.
All processing happens locally. Nothing is uploaded.
Toggle between original and blurred versions with one click.
Upload your image to blur (PNG, JPG, WEBP, BMP, or GIF, up to 50MB).
Use the slider or a Light/Medium/Strong preset to set blur intensity with real-time preview.
Download your blurred image instantly as a PNG.
Upload any of these formats. Your blurred image always downloads as a PNG.
Lossless format with transparency
Universal format for photos
Modern web format
Legacy formats supported
Discover more free online image tools.
Image blur is a visual effect that reduces the sharpness of an image by averaging nearby pixel values. It's commonly used for privacy masking, background blur, and creative effects.
Yes! The blur effect updates in real-time as you adjust the slider, so you can see exactly how your image will look before downloading.
Use 1-5px for a subtle effect, 6-10px for medium blur, 11-15px for a strong effect, and 16-25px for heavy blur. You can also use the Light (3px), Medium (8px), and Strong (15px) quick presets to jump straight to a common setting.
Yes! Use the preview toggle button to switch between the original and blurred versions instantly.
Yes, completely free with no signup required. All processing happens locally in your browser.
No! All processing happens entirely in your browser. Your images never leave your device.
You can upload PNG, JPG, JPEG, WEBP, BMP, or GIF files. The blurred result is always downloaded as a PNG, regardless of the format you uploaded, to preserve quality.
Yes, uploaded images must be 50MB or smaller. Since everything runs in your browser, very large files may also be slower to process depending on your device.
Currently, the tool focuses on one image at a time for the best real-time preview experience.