Blur & Mosaic Images Online Free
Apply gaussian blur or mosaic pixelation to your images. Select the full image or draw a region to blur. Perfect for privacy protection and artistic effects.
Drop images here or click to browse
Supports JPG, PNG, WebP. Multiple files supported.
All processing happens in your browser. Your images never leave your device.
How to Blur Images Online
Upload Your Images
Drag and drop or click to upload one or more images. All common formats are supported.
Choose Blur Settings
Select gaussian blur or mosaic mode, adjust intensity, and choose to blur the full image or a specific region.
Download Results
Preview the effect in real-time and download your blurred images. Batch processing is supported for multiple files.
Frequently Asked Questions
What is the difference between Gaussian blur and mosaic?
Gaussian blur creates a smooth, soft-focus effect that gradually blends colors. Mosaic (pixelation) divides the area into blocks and fills each with the average color, creating a distinctive pixelated look.
Can I blur only part of an image?
Yes! Switch to "Select Region" mode and draw a rectangle on the image to define the area you want to blur. Only the selected region will be affected.
Are my images uploaded to any server?
No. All processing happens entirely in your browser using canvas technology. Your images never leave your device, ensuring complete privacy.
Can I blur multiple images at once?
Yes, you can select multiple files when uploading. The same blur settings will be applied to all images during download, enabling efficient bulk processing.
What image formats are supported?
The tool supports JPG, PNG, and WebP formats. The output format matches the input format to preserve quality.
Use Cases for Image Blur & Mosaic
Privacy Protection
Blur personal information, faces, or identifiable details in photos before sharing online. Keep your content safe while maintaining context.
Face Blurring
Anonymize faces in photos for journalism, research, or social media. Protect identity while keeping the rest of the image clear.
License Plate Hiding
Hide license plates in vehicle photos for privacy compliance. Essential for real estate listings, street photography, and online marketplaces.
Sensitive Info Redaction
Redact sensitive data like addresses, phone numbers, or financial details in screenshots and documents before sharing.
Artistic Effects
Create depth-of-field effects, dreamy backgrounds, or bokeh-style aesthetics. Add artistic blur to enhance photo composition.
Screenshot Censoring
Censor sensitive parts of screenshots for tutorials, bug reports, or presentations. Share screen captures without exposing private data.
Ready to Blur Your Images?
Blur or pixelate your images instantly in your browser. Free, secure, and supports bulk processing.