Blur image backgrounds with center focus or edge vignette — 100% in your browser
Upload an image to see the preview
To blur a background: upload your image — the AI segments the subject and applies a blur effect to the background, all processed locally in your browser.
FreeToolHub Background Blur is a free browser-based tool that blurs image backgrounds using AI, no signup, no upload.
Background blur uses the Canvas API Gaussian blur filter. This is not AI-based background removal. Results depend on browser capabilities. All processing is local.
About this tool
Add DSLR-quality background blur to photos. No app, no upload, runs fully in your browser.
What Is the Background Blur?
The Background Blur is a free browser-based image tool that performs background blur operations entirely on your device using the HTML5 Canvas API and JavaScript. Unlike cloud-based image editors that upload your photos to remote servers, this tool processes everything locally — your images never leave your browser. It supports bokeh effect formats and maintains original quality without compression artifacts. The tool handles batch processing for multiple files and provides real-time preview before applying changes. No watermark is added to output, and there are no usage limits or file size restrictions beyond your device's memory.
Who Should Use This Tool?
Content creators and social media managers use this tool daily for background blur tasks — resizing photos for Instagram, compressing images for faster page loads, or converting between formats. Web developers optimize bokeh effect assets without installing desktop software. Photographers apply blur photo background adjustments to client previews before committing to full edits in Photoshop. Small business owners create marketing visuals without paying for Canva Pro or Adobe subscriptions. Students and educators use it for quick image edits in presentations and projects. Privacy-conscious users prefer it because family photos never leave their device.
How to Use the Background Blur
Click the upload area or drag an image file onto the tool. The tool displays a live preview with adjustable settings — dimensions, quality, format, or effect strength depending on the operation. Use the sliders and input fields to fine-tune background blur parameters. Click the download button to save the processed image. For batch operations, multiple files can be loaded at once and processed with the same settings. All processing happens in your browser using Canvas API — close the tab and your images are gone. Output maintains maximum quality with no watermark.
Frequently asked
How does browser-based background blur compare to Photoshop?
Photoshop's Lens Blur costs $22.99/month and requires manual subject selection. This tool applies Gaussian blur (adjustable radius 1-20px) to your chosen background area in under 2 seconds, producing DSLR-style bokeh depth-of-field. For social media portraits, product shots, and video call backgrounds, the result is visually comparable for web use.
Can I control the blur intensity and area?
Yes. Adjust blur radius from subtle (2px, slight softening) to heavy (20px, complete background obliteration). Select the subject area to keep sharp, and the tool applies progressive blur to the remainder. Output is full-resolution PNG with no compression artifacts, suitable for Instagram, LinkedIn, or print at 300 DPI.
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