Redact sensitive details from an image
Cover names, addresses, account numbers, faces, plates, or private screenshot details with a solid black rectangle. The image is processed locally with browser canvas APIs and exported as a new file.
Redact an image freeBrowser tool
Redact image
Runs locally in your browser. The selected image is not uploaded by this tool.
JPEG, PNG, and WebP are supported by default. Specialized converters restrict the file picker to their required input format.
How to redact an image
Upload an image
Choose a JPEG, PNG, or WebP file from your device.
Set the box position
Enter X and Y percentages for the top-left corner of the redaction box.
Set the box size
Enter width and height percentages, then check that the box completely covers the sensitive area.
Verify and download
Review the exported preview at full size, then download and share only the new redacted file.
Image redaction features
Opaque black redaction
Replace visible pixels in the selected area with a solid black rectangle rather than leaving clues through blur or pixelation.
Percentage-based region
Set X, Y, width, and height values to place the box precisely on the original image.
Local processing
Canvas rendering happens in your browser, so the image is not uploaded to a server.
Download-ready output
Inspect the preview and save the redacted image as a separate file while keeping your original unchanged.
After this task
After this free tool, open Magic Eraser for the next AI editing workflow.
Continue with Magic EraserSpecifications
| Input formats | JPEG, PNG, WebP |
| Output formats | JPEG, PNG, WebP when supported |
| Redaction shape | Opaque black rectangle |
| Region units | Percent of image |
| Processing | Client-side canvas |
Related Magic Eraser Tools
Common questions
Is a black box safer than blur?
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For visible content, a fully opaque rectangle replaces the pixels in that region, while blur can leave shapes or text length recognizable. Always inspect the downloaded result before sharing it.
Does the image upload to a server?
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No. The browser decodes, draws, and exports the image locally.
Does this change my original image?
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No. The tool exports a new file. Keep the original private and share only the verified redacted copy.
Need natural object removal instead?
Use Magic Eraser when you want to remove an object and rebuild the background rather than cover it with a black box.
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