Blur Image Background Online

Background blur creates the shallow depth-of-field "bokeh" effect that makes subjects stand out from their environment — previously only achievable with expensive camera lenses. For images where you want to soften the full background, applying a uniform Gaussian blur and then compositing the subject back on top is a quick and effective technique.

This tool applies Gaussian blur of adjustable intensity (1–20 radius) to your entire photo. Ideal for creating soft banner backgrounds, privacy-masking backgrounds in video calls, atmospheric poster effects, and low-quality image placeholders (LQIP) for web performance.

Processing happens entirely in your browser. Nothing is uploaded. Download the blurred output as JPEG for smallest file size, or PNG for lossless quality — both options available after processing.