Blur An Image

Blur an Image — Free Online Tool

Quickly blur any image right in your browser. This tool applies a smooth, customizable blur effect — perfect for softening backgrounds, hiding details, or creating artistic visuals. All processing happens locally on your device, so your images are never uploaded anywhere. It’s private, fast, and secure.

How to Use

1. Upload a JPG or PNG image.
2. The image is automatically blurred with a default blur value of 0.2.
3. Use the slider to adjust the blur intensity between 0 (no blur) and 1.2 (maximum blur).
4. Click Apply to update the image preview.
5. Download your blurred image as PNG or JPEG. For JPEG, you can adjust the quality setting before saving.

Note: Check the Notes panel on this page for the maximum supported resolution that your device can handle.

Why Blur an Image?

Blurring is one of the simplest yet most effective editing techniques. You can use it to obscure sensitive information, soften backgrounds, draw attention to key subjects, or add a cinematic glow. This tool makes it easy to apply the exact amount of blur you need — without installing any software.

Key Features

• Private & secure: 100% browser-based processing. Your images never leave your device.
• Automatic start: Default blur of 0.2 is applied when you upload an image.
• Customizable: Adjust blur value smoothly from 0.0 to 1.2.
• Simple controls: Change the value and click Apply to see instant results.
• Flexible output: Save as PNG (lossless) or JPEG (with adjustable quality).
• Format support: Works with JPEG and PNG images.
• Browser tested: Optimized for Chrome and Safari.

Tips for Best Results

• Use light blur (0.1–0.3) for subtle background softening.
• Use medium blur (0.4–0.8) to hide details or text in screenshots.
• Use strong blur (1.0–1.2) for stylized or abstract effects.
• For graphics or icons, export as PNG for lossless quality.
• For photos, export as JPEG and tune the quality slider to balance clarity and file size.
• Very large images depend on your device’s resources; see the Notes section for the maximum resolution supported.

How It Works (Briefly)

When you apply blur, the tool averages nearby pixel colors using a Gaussian-style blur filter. Each pixel is replaced with a blended value based on surrounding pixels, producing a soft, smooth effect. The entire process runs locally on a browser canvas, meaning no data is sent anywhere — everything stays on your device.

Frequently Asked Questions

Is my image uploaded anywhere?

No. The entire blur process runs locally in your browser. Your image data never leaves your computer.

Which formats are supported?

You can upload JPEG or PNG images. Downloads are available in PNG (lossless, transparency supported) or JPEG (with adjustable quality).

Can I control how much blur is applied?

Yes. Use the slider to choose any value from 0.0 (no blur) to 1.2 (maximum blur), then click Apply.

Does PNG output keep transparency?

Yes. When you export as PNG, transparent areas remain transparent.

Why does a large image sometimes fail?

Very high-resolution images may exceed your device’s memory. Check the Notes panel for the maximum supported resolution.

Which browsers are recommended?

This tool is tested on Google Chrome and Apple Safari. It may also work on other modern browsers, but Chrome or Safari gives the best performance.

Quick Steps (TL;DR)

• Upload PNG or JPG → auto blur (0.2)
• Adjust blur (0–1.2) → click Apply
• Export as PNG (keeps transparency) or JPEG (choose quality)
• Check Notes for max resolution supported
• Works best on Chrome and Safari
• No uploads; everything happens locally in your browser