Blur Image Background Online
Soften the background of any photo while keeping the subject sharp. Paint over the area to blur, preview live, and download in your browser.
How to Blur the Background of an Image
Upload your photo and switch to Selective mode. Paint over the background, tune the blur, then download the sharp-subject result.
Step 1
Upload Photo
Drop in a JPG, PNG, or WebP photo with a clear subject against the background.
Step 2
Paint the Background
Switch to Selective mode and brush over the background area you want blurred.
Step 3
Download Result
Adjust the blur radius, then download your photo with a sharp subject and soft background.
Free Online Background Blur Tool to Blur the Background and Keep the Subject Sharp
A background blur softens everything behind your subject so the focus stays on the person, product, or object in front. It mimics the shallow depth-of-field look of a portrait lens, turning a busy or distracting backdrop into a smooth, dreamy wash of color. Photographers call this bokeh, and it is one of the fastest ways to make a phone snapshot look intentional and professional. Whether you are polishing a LinkedIn headshot, cleaning up a product shot, or simply hiding a messy room, blurring the background directs the viewer’s eye exactly where you want it. Unlike a fast camera lens, you need no new hardware — just a few brush strokes.
This tool uses a selective blur brush instead of automatic subject detection, which means you stay in full control. After uploading, switch to Selective mode and paint over the background with your cursor; the area you cover turns soft while the rest of the photo stays perfectly sharp. Use the Keep brush to protect a region you do not want blurred, and adjust the radius slider for a subtle haze or a heavy bokeh. Because the blur is applied on a canvas in your browser, nothing is uploaded and the result updates live as you paint. Manual control also avoids the edge errors that automatic tools sometimes leave around hair and fine detail.
Everything runs locally on your device. Your photo is read into a canvas, blurred where you choose, and exported back to you without ever touching a server, so private images never leave your computer. You can save the result as PNG, JPEG, or WebP depending on your needs, and even cap the maximum width to keep file sizes small for the web. There is no account, no watermark, and no queue — open the tool, blur the background, and download in seconds. It works on portraits, product photos, real-estate shots, and event pictures alike. The whole workflow is reversible until you download, so you can experiment freely.
Background blur is useful far beyond portraits. Sellers use it to make products pop against plain backdrops, real-estate agents soften cluttered rooms, and content creators clean up thumbnails and profile pictures. Because this tool is manual, it handles group shots and tricky edges gracefully — you simply paint more of the background rather than fighting an auto-mask that misses hair or hands. However precise or stylised you want the effect, the same brush gives you the look. Open an image and blur its background today, entirely in your browser, with nothing uploaded and nothing to install. It is the simplest way to add a studio feel to any photo at no cost.
Selective Brush
Paint exactly which part of the background blurs while the subject stays sharp.
Keep Mode
Switch the brush to protect areas you want to keep perfectly clear and unblurred.
Adjust Radius
Slide from a light haze to a strong bokeh to set the exact blur strength.
Live Preview
Watch the blurred result update instantly as you paint, before you download.
PNG JPEG WebP
Export your sharp-subject photo in the format that fits your project best.
Fully Private
Your photo is blurred in your browser and never uploaded to any server.
FAQ
Frequently Asked Questions
Background blur softens everything behind your subject so the focus stays on the person, product, or object in front. It mimics the shallow depth-of-field look of a portrait lens, turning a busy backdrop into a smooth, dreamy wash.
Open the tool, upload your photo, and switch to Selective mode. Paint over the background with the brush; that area turns soft while the subject stays sharp. Tune the radius, then download your result.
No. This tool uses a manual selective brush rather than automatic subject detection, so you control exactly which area blurs. Many people prefer this because it avoids the edge errors that auto-masking sometimes leaves around hair and fine detail.
You can upload JPG, PNG, WebP, and most common browser-decodable formats. The blurred result can be exported as PNG, JPEG, or WebP, and you can cap the width to keep the file small for the web.
No. All blurring happens on a canvas inside your browser, so your photo never leaves your device. Nothing is sent to a server, stored remotely, or shared with anyone — your private images stay private.
Yes. Because the blur is painted by hand, you can blur as much or as little of the background as you like, leave one corner sharp, or protect a region with the Keep brush for precise control.
A small radius gives a subtle softening that just reduces distraction, while a larger radius creates a heavy bokeh that removes background detail entirely. Around 12 to 20 pixels feels like a natural portrait lens on most photos.
Yes. Paint the background around each subject to keep several people or products crisp at once. The brush follows your cursor, so you decide where the sharp areas end and the blurred background begins.
Blurring only softens pixels; it does not lower resolution. If you export as JPEG, choose a high quality setting to avoid extra compression. PNG and WebP keep the result crisp apart from the blur you applied.
Yes. It is completely free with no watermarks, no sign-up, and no daily limits. Blur as many photos as you like, entirely in your browser, with nothing uploaded and nothing to install on your device.
