Choose Selected areas, click Add area and drag a rectangle on the preview. Move or resize the box to fit the detail, then adjust Blur strength.
Blur Image Online
Blur a whole photo or selected areas. Adjust the strength and generate a PNG or JPG at the original resolution.
How to use the blur image tool
1
Choose one image
Choose a static JPG, PNG or WebP. Selecting it starts the upload and opens the preview.
2
Choose where to blur
Keep Whole image selected, or switch to Selected areas. Click Add area and draw rectangles over the details to blur.
3
Adjust the effect
Move the Blur strength slider, compare with Show original, and choose PNG or JPG.
4
Generate and download
Once the upload finishes, click Generate Image, then download the completed result.
Blur a whole photo or selected areas
Use Blur Image to soften a picture into a backdrop or blur details in a screenshot. Choose the whole image or draw rectangles around the areas you want to change.
Both modes use Gaussian blur, which smooths fine detail and edges.
Whole image
- Where it applies
- Across the entire picture.
- When to use it
- Soften a photo to create a background for text or a slide.
Selected areas
- Where it applies
- Inside the rectangles you draw.
- When to use it
- Soften a face, a sign or a section of a screenshot while keeping the surrounding scene sharp.
| Mode | Where it applies | When to use it |
|---|---|---|
| Whole image | Across the entire picture. | Soften a photo to create a background for text or a slide. |
| Selected areas | Inside the rectangles you draw. | Soften a face, a sign or a section of a screenshot while keeping the surrounding scene sharp. |
Switching modes keeps your rectangles. All selected areas share one strength, and overlapping areas receive the same blur.
Save your blurred picture as PNG or JPG
PNG is selected by default.
Transparency
- PNG
- Supports transparency; blur can soften its edges.
- JPG
- Transparent areas blend with a white background.
Compression
- PNG
- Lossless encoding of the processed image.
- JPG
- Lossy encoding with five quality choices.
Useful for
- PNG
- Screenshots, graphics and transparent images.
- JPG
- Photos where file size matters.
| Detail | PNG | JPG |
|---|---|---|
| Transparency | Supports transparency; blur can soften its edges. | Transparent areas blend with a white background. |
| Compression | Lossless encoding of the processed image. | Lossy encoding with five quality choices. |
| Useful for | Screenshots, graphics and transparent images. | Photos where file size matters. |
Both formats keep the image dimensions after correcting its stored orientation.
Choose the area before increasing the strength
To blur text in an image, draw a box around the complete line, including its edges. Check the downloaded result before sharing. Use Image Cropper when removing the section would work better.
Start at strength 30 and compare with the original. Use Image Resizer first if your source exceeds the dimensions or pixel limit.
For a semi-transparent overlay, use Fade Image to adjust the opacity of the whole picture and save it as PNG.
Questions about Blur Image
Yes. Draw up to 30 rectangles by hand. They share a strength from 1 to 100, starting at 30. Faces and text are selected manually.
You can place rectangles over background areas while leaving the subject outside them. This tool does not automatically separate the subject or trace irregular outlines.
Use a static JPG, PNG or WebP up to 20 MB. Each side must be at most 8192 pixels, with at most 16,777,216 pixels overall. Animated images are unsupported.
Yes, after correcting the image orientation. The browser preview is a reduced approximation; the download is processed at the original dimensions. Inspect that file for the final effect.
Yes. Move or resize a selected rectangle, delete it, or use Undo for selection edits. Clear areas removes all rectangles. You can keep adjusting the uploaded image.
Yes. Blur a whole photo or selected areas and download the result for free. Registration is not required.
Selecting a file uploads it. Adjustments update a preview in your browser; Generate Image sends your settings for server processing of the uploaded file.
Blur blends nearby detail into a smooth effect. Image Mosaic produces visible blocks. Choose the effect that suits the picture and inspect the result.
Try Blur Image on your picture
Choose a photo, set the area and strength, then generate your PNG or JPG.