Free Online Image Blur
Blur several photos at once or select specific areas — faces, sensitive data, backgrounds. Everything in the browser, no file uploads.
Drag to increase the blur. At 0 the image stays original.
How to use the image blur tool
Upload your images by dragging one or several files onto the marked area, or click to select them from your device. The tool accepts JPG, PNG and WebP and loads every file at once: each image gets a tab with its name above the preview, and the × button next to it removes that image from the list without starting over. The Add images button lets you include new files at any time, and repeated files (same name and same size) are discarded automatically. Nothing is sent to a server — all processing happens in your own browser.
The image sits on the left and follows the page as you scroll, while the controls stay in the right-hand column. In Whole image mode, just drag the Intensity control: it starts at 0, with the original photo, and the blur appears in the preview in real time as you raise the value up to 20. There is no button to confirm — what you see on screen is exactly what gets downloaded, and sliding back to 0 undoes the effect. With two or more images loaded, the same value applies to the whole batch.
Select area mode blurs only one region: click and drag over the image (or swipe with your finger on mobile) to draw a rectangle around faces, license plates, ID numbers, addresses or any sensitive data, set the selection intensity and confirm with Blur Selection. You can repeat it as many times as you like, one region at a time, and the Undo button reverts the last marking applied. Because the selection depends on a manual marking, this mode is only available with a single image loaded.
The intensity value is relative to the size of the photo rather than a fixed pixel radius: an 800px image and a 4000px one end up blurred in the same proportion, which keeps batch results consistent. To safely hide confidential data, use an intensity above 15. Once you are happy with the result, pick the output format — JPG, PNG or WebP — and click Download to save the image on screen. With two or more images, Download all (.zip) packs the entire batch into a single compressed file, keeping the original names. Restore brings the files back to their original state and resets the intensity control; Clear all empties the list and returns to the initial screen.