How to Blur Parts of an Image Online
When you need to blur parts of images
ā Hide faces and identities in photos ā Cover sensitive information like addresses, phone numbers, credit cards ā Remove distracting background elements ā Obscure private data in screenshots ā Blur license plates or other identifying information
Step-by-step guide
1. Open the Blur Image tool 2. Upload your photo or screenshot 3. Draw a box over the area you want to blur 4. Adjust blur strength from subtle to strong 5. Add multiple blur boxes if needed 6. Download your edited image
Blur strength guide
| Strength | Best for | |----------|----------| | 20-40% | Subtle blur for background elements | | 50-70% | Standard blur for faces and text | | 80-100% | Maximum obscuration for sensitive information |
Best practices
Check at full resolution ā zoom in to confirm blurred content is completely unreadable Overlap slightly ā make the blur area slightly larger than the content you are hiding Don't use pixelation ā modern AI can reconstruct pixelated images. Proper Gaussian blur is much more secure
FAQ
Can blurred areas be reversed? No. Once applied and saved, the blur is permanent.
Will blur work even if someone zooms in? Yes, as long as you use sufficient blur strength.
What is the difference between blur and pixelate? Blur produces a smooth unreadable area. Pixelation can sometimes be reversed by AI tools.