Blur an Image
Blur the whole photo, or drag a box over the part you want hidden — faces, license plates, addresses. Runs in your browser.
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This blur image tool softens your whole photo or just the part you drag a box over — faces, license plates, addresses, access codes. Choose the region, set the strength, download.
The blur is applied in your browser and the output downloads straight from your device. Nothing is uploaded, so it is safe for sensitive screenshots.
Why Use This Blur Image Tool?
- Whole image or a selected region — drag a box on the preview
- Strength slider — from a light soften to unreadable
- No upload — the right tool for IDs, invoices and private screenshots
- Simple alternative to pixelation — blur reads as intentional editing
- Free, no signup
How to Blur an Image — 3 Steps
- Drop your image into the box above and wait for the preview.
- Choose whole image or selected area, then drag a box over the region to hide (or set the blur strength with the slider).
- Press the blue Blur Image button and download the result.
Hiding Things Properly: Blur vs Alternatives
Blurring a region is the everyday fix for sharing screenshots responsibly: hide a colleague's face in an office photo, blank out a license plate before posting a car listing, cover the address on a shipping label, obscure an API key in a screenshot you are asking for help with. The tool applies a real Gaussian blur whose strength you control — a light setting softens detail while keeping shapes readable, and the high end destroys the content completely.
An honest note on strength: a weak blur over text can sometimes be reverse-engineered by determined effort. When you are hiding credentials, full names or anything security-sensitive, push the slider high enough that nothing is guessable — if you can still read it before blurring, assume someone else could after. For everyday privacy (faces in crowd shots, plates in street photos), medium settings look natural and do the job.
Region blurring beats whole-image blurring for most real cases: the viewer keeps the context while the sensitive part goes unreadable. Drag the box slightly larger than the target — blur bleeds inward from the edges of the region, and a tight box can leave readable fragments at the boundary.
The alternative people often ask about is pixelation (mosaic). Blur is the better-looking choice in almost every case and just as effective at high strength. Output keeps your input format, quality is preserved outside the blurred region, and the entire job runs in your browser — which is exactly what you want when the image contains information you would not paste into a stranger's website.
Frequently Asked Questions
At high strength, no — the information is genuinely destroyed. At low strength, partial recovery is theoretically possible, so use a strong blur for passwords, keys and IDs.
Choose the selected-area mode and drag a box around it on the preview. Make the box a little larger than the target — blur eats inward from the box edges.
One region per pass. Run the blurred output through the tool again to blur a second area — quality outside the regions is preserved.
No — only the selected region (or the whole image, if you chose that) is affected. Everything else is copied unchanged.
No — that is the point. The blur runs entirely in your browser, which is what makes it suitable for sensitive screenshots.
Not in this tool — blur is the offered effect and reads as intentional editing. For mosaic effects, an editor with pixelate filters is the better fit.