Blur the background of any image while keeping the subject sharp. Professional look.
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Enter an image URL and adjust blur to preview
More about the Blur Image Background
A phone camera's small sensor physically can't produce the shallow depth of field a wide-aperture portrait lens creates naturally, that soft, blurred background look has to be simulated after the fact instead, which means actually separating the subject from everything behind it first and then applying a graduated blur specifically to the background while leaving the subject perfectly sharp. This tool blurs an image's background while keeping its subject in focus, simulating a professional lens's shallow depth of field on a photo that was never actually shot with one. Useful for giving a phone-shot portrait the same soft background look a wide-aperture lens produces optically, making a product photo's background fade so the subject stands out clearly, or applying a professional-looking blur to a photo shot with a camera too small to produce that effect on its own.
Blur the background of any image while keeping the subject sharp. Professional look. The Blur Image Background is one of 900+ free developer tools on Toolblip - all open to use without a signup.
How do I use the Blur Image Background?
Open the Blur Image Background on this page, paste or upload your input, and the result updates as you type. Use the copy button to grab the output, or adjust options to tune the result. Nothing you enter leaves your browser.
Is the Blur Image Background free to use?
Yes. The Blur Image Background is a free online tool on Toolblip - no signup, no account, no hidden usage limits. It runs in your browser and works on desktop and mobile.
Is the Blur Image Background safe and private?
Yes. The Blur Image Background processes your data entirely client-side, so nothing you paste is uploaded or stored on any server. It's safe to use with internal snippets, private keys for debugging, or any other sensitive content you'd rather not send to a remote service.
What kind of output does the Blur Image Background produce?
The Blur Image Background produces clean, formatted output that you can copy or download with a single click. The output is tailored to the tool's purpose — formatted code, converted data, transformed text, or processed media — and is ready for immediate use in your project or workflow.
Does the Blur Image Background work on mobile devices?
Yes. The Blur Image Background is designed to work on any device with a modern browser, including phones and tablets. The interface adapts to smaller screens, and the core functionality — paste input, transform, copy output — works the same way regardless of your device.
Does the Blur Image Background preserve my image's original quality?
Whenever an operation is lossless - renaming, metadata stripping, format conversion to a lossless codec - the Blur Image Background preserves the original bytes. Operations that resample the image (resizing, compressing to JPEG/WebP) will re-encode, but you control the quality setting, and nothing is uploaded.
Does the Blur Image Background preserve the original quality of my images?
The Blur Image Background preserves original quality for lossless operations like resizing down or converting between lossless formats. For operations that re-encode the image (JPEG compression, format conversion to lossy codecs), you control the quality setting to balance file size against visual fidelity.
Can I use the Blur Image Background offline?
Once the page has loaded, the Blur Image Background continues to work without an internet connection. Bookmark this page and return to it anytime - all logic runs locally.