Apply Gaussian blur to any image directly in your browser. Upload a photo, adjust the blur intensity with a simple slider, preview the result in real time, and download your blurred image in PNG, JPEG, or WebP format. No uploads to any server, your images stay completely private.
Drop an image here or click to select
Supports PNG, JPEG, WebP, GIF, BMP, SVG
Upload an image by dragging and dropping it into the upload area or clicking to browse your files. Once loaded, use the blur intensity slider to control the strength of the blur effect (1–20 pixels). You can also use the quick preset buttons for common blur levels: Light (2px), Medium (5px), Strong (10px), or Heavy (15px). The preview updates in real time as you adjust. Click 'Download' to save the processed image in your preferred format.
Image blurring is commonly used for: obscuring sensitive information in screenshots (faces, license plates, personal data), creating background effects for design projects and presentations, adding depth-of-field effects to product photos, generating blurred placeholders for lazy-loading images on websites, preparing images for privacy compliance (GDPR/CCPA), softening harsh textures or imperfections in photos, and creating frosted glass UI effects for web and mobile design.
This tool uses the HTML5 Canvas API with CSS filter-based Gaussian blur. The blur operation applies a convolution with a Gaussian kernel, where each pixel's new value is a weighted average of its neighbors. The blur radius (in pixels) determines the standard deviation of the Gaussian distribution - higher values produce stronger blur. Processing happens entirely in the browser using the Canvas 2D rendering context's built-in filter property, which leverages GPU acceleration for fast processing even on large images.
Upload your image to this tool, adjust the blur intensity slider to your desired level (1-20px), and download the result. The entire process happens in your browser - no server uploads required.
For subtle background softening, use 2–4px. For obscuring text or faces, use 8–12px. For strong privacy blurring where content must be unrecognizable, use 15–20px. The preview shows the effect in real-time so you can find the perfect level.
No. This tool processes images entirely in your browser using the Canvas API. Your images never leave your device, making it safe for sensitive or confidential content.
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