Blur Image
Drag & Drop your image here
or
Supports: JPEG, PNG, WEBP, GIF, HEIC
Upload an image to start blurring
Free Online Blur Brush Tool
Selectively blur parts of your photos with precision using our advanced blur brush editor. Perfect for creating privacy masks, artistic effects, background blur, or hiding sensitive information while keeping important details sharp and clear.
How to Use the Blur Brush Tool
- Upload Your Photo: Drag and drop your image or click "Upload Photo" to select from your device
- Choose Blur Type: Select from Mosaic, Gaussian Blur, or Motion Blur effects
- Adjust Brush Size: Use the slider to set brush size from 5px to 200px for precise control
- Paint to Blur: Click and drag on areas you want to blur - effects apply in real-time
- Fine-tune Settings: Adjust cell size for mosaic, or intensity and angle for motion blur
- Save Your Work: Download the edited image in its original resolution
Supported File Formats
- JPEG/JPG - Most common photo format
- PNG - High quality with transparency support
- WEBP - Modern web format with excellent compression
- HEIC - iPhone photos (automatically converted to JPEG)
- GIF - Simple graphics and animations
Key Features
Precision Brush Control
Variable brush sizes with real-time cursor preview for accurate selective blurring.
Multiple Blur Types
Choose from Mosaic, Gaussian, and Motion blur effects with customizable settings.
Undo/Redo System
Up to 20 steps of editing history for easy corrections and experimentation.
Touch Support
Works seamlessly on tablets and touch devices with gesture support.
Privacy Protected
Images are processed locally in your browser - nothing uploaded to servers.
Original Quality
Always saves at original image resolution with no quality loss.
Common Use Cases
Privacy Protection
Blur faces, license plates, or personal information in photos before sharing.
Artistic Effects
Create selective focus and depth of field effects for professional-looking photos.
Motion Effects
Add dynamic motion blur to create speed and movement in your images.
Pro Tips
- Edge Work: Use smaller brush sizes for detailed work around edges
- Background Areas: Larger brushes work better for covering large background areas
- Motion Effects: Motion blur works great for creating speed effects in sports photos
- Privacy Mode: Mosaic blur is perfect for social media posts requiring privacy
- Experiment: Use the undo feature to experiment with different blur intensities
Frequently Asked Questions
What image formats does the blur brush tool support?
Our blur brush tool supports JPEG, PNG, WEBP, HEIC, and GIF formats. HEIC files are automatically converted to JPEG for editing compatibility. All formats maintain their original quality during processing.
Is my image data safe and secure?
Yes, absolutely! All image processing happens directly in your browser using JavaScript. Your images are never uploaded to our servers or stored anywhere. The blur effects are applied locally on your device, ensuring complete privacy and security.
What's the difference between the three blur types?
Mosaic creates pixelated effects by grouping pixels into squares (adjustable cell size). Gaussian provides smooth, natural blur perfect for backgrounds and artistic effects. Motion blur creates directional blur effects with customizable angle and intensity to simulate movement.
Can I undo changes if I make a mistake?
Yes! The tool includes an advanced undo/redo system that saves up to 20 steps of your editing history. Use the Undo button in the editor header or press Ctrl+Z to reverse changes. You can also use the Reset button to restore the original image instantly.
Does the tool work on mobile devices?
Yes! The blur brush tool is fully responsive and includes touch support for smartphones and tablets. You can paint blur effects using touch gestures, and the interface automatically adapts to smaller screens for optimal mobile editing.
Can I mix different blur types in one image?
Absolutely! You can switch between blur types while editing. Each brush stroke applies the currently selected blur type, allowing you to use mosaic blur for privacy areas, gaussian blur for backgrounds, and motion blur for dynamic effects all in the same image.