Blur Image Online
Blur any part of your image instantly with local browser processing.
Session guarantee
Your image is loaded into browser memory, edited locally, and exported back to your device.
Why this feels safer
No file upload for image processing
Clear redaction modes for different privacy needs
Built to hide text, IDs, faces, and other sensitive details
Workspace
Private redaction console
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How to use
Run a clean local workflow
- 1
Click "Upload your image" or drag and drop a JPG, PNG, or WebP file onto the page.
- 2
Make sure "Blur" is selected in the toolbar (it is the default mode).
- 3
Click and drag on the image to draw a box over the area you want to blur.
- 4
Repeat for any other areas. Use "Undo" to remove the last selection if needed.
- 5
Click "Export redacted PNG" to save the blurred result to your device.
Why use this tool
Made for sensitive material
Every time you share a screenshot, there is a good chance it contains more private information than you realize: email addresses in notifications, names in conversation threads, internal URLs, account numbers, or customer data visible in a dashboard.
Blurring sensitive parts of an image before sharing is one of the simplest privacy habits you can build. It takes under a minute and prevents accidental data exposure to colleagues, clients, or strangers on social media.
This tool runs entirely in your browser. Your image never leaves your device, is never uploaded to a server, and is never stored anywhere. You can blur as many areas as you need, undo mistakes instantly, and download a clean image in seconds.
Questions
Frequently asked questions
How do I blur part of an image online?
Upload your image, drag a box over the area you want to blur, then export the result. The blur is applied instantly with no account required.
Is my image uploaded to a server when I blur it?
No. The tool uses your browser's built-in Canvas API to process the image entirely on your device. Nothing is sent to a server.
What image formats can I blur?
You can upload JPG, PNG, and WebP images. The result is downloaded as a PNG file.
Can I blur multiple parts of the same image?
Yes. Each drag adds a new blurred region. There is no limit to how many areas you can blur in a single session.
What if I blur the wrong area?
Click Undo to remove the last blurred area, or Clear all to start over. Neither action affects the original file.
Can I choose how strong the blur is?
The blur is set to a strong level by default so that text and details are unreadable. If you want a different effect, try Pixelate or Black Box mode.
What is the difference between Blur, Pixelate, and Black Box?
Blur creates a smooth frosted-glass effect. Pixelate replaces the area with large colored blocks. Black Box covers the area with solid black and is the strongest visual redaction.
Can I blur an image on my phone?
Yes. The tool works on modern mobile browsers. Open the site on your phone, upload an image from your gallery, and drag over the area to blur.
Does blurring affect the overall image quality?
Only the selected area is affected. The rest of the image remains at full quality. The downloaded PNG is lossless.
What is the maximum image size I can use?
There is no hard limit. The tool can handle any image your browser can load, though very large images may take a moment to process depending on your device.
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