How to use Blur Image Online - Free Photo & Background Blur
- 1Upload your image.
- 2Adjust the options shown below the preview.
- 3Download the result. Your file never leaves your device.
About Blur Image
Blurring an image online means softening pixels across part or all of a photo, so faces, text, or backgrounds turn soft and unreadable. Pi7's blur tool runs on a canvas in your browser: pick Gaussian or Motion blur and drag one slider. For a standard whole-photo blur, nothing ever reaches our servers.
The Blur Factor slider runs from 1 to 40, starting at 10. Low numbers give a light softness good for a subtle depth-of-field look, while pushing past 25 scrambles enough detail that faces and text stop being readable. Motion Blur instead uses an Angle, a Distance, and a Samples count to create a directional streak rather than an even fog.
Check "Blur Background" and Pi7 sends your photo to our server for a quick round trip. An AI model scans the image, finds which pixels belong to the main subject, and returns a mask outlining that shape. Your browser keeps the subject sharp while blurring everything outside the mask. This is the only step that leaves your device. Manual blur never does.
It depends on which blur you pick. Gaussian and Motion blur run on canvas math in your browser, so a standard blurred photo never leaves your device. Background-only mode is different: it uploads your photo over HTTPS for subject detection, and that copy is deleted within 20 minutes.
Not with certainty. A strong blur scrambles pixel data for good. A light blur over plain text is different - sharpening tools can sometimes guess letters back from a weak one, so use a high Blur Factor or pixelate for anything sensitive. For a photo that came out blurry by accident, try our unblur image tool instead.
Yes, as a side effect. Saving through a canvas drops EXIF data such as GPS coordinates automatically, along with the blur itself.