Manual image blur and redaction
Hide a face or private detail before sharing a photo.
Your inputs
Your results
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How it works
Apply explicit solid-black or blurred rectangular patches to a raster image and export a flattened PNG. The original file is not modified.
Read the source reference ↗A few things to know
Blur is not reliable redaction. Solid coverage protects only selected pixels; check all visible information and share only the flattened export. Limits: 25 MB total, 20 images, 16 million pixels per source and output, and 8,192 pixels per side. Files are flattened, metadata is not copied and animations become one frame. JPEG uses a white background for transparency.
When to use this tool
Cover private image details before sharing an exported copy. Solid replacement is preferable to blur when the content must not remain recognizable.
- Hide a screenshot detail.
- Cover private photo content.
- Create a flattened sharing copy.
How to use manual image blur and redaction
Prepare the inputs
Choose an uploaded file or the generated sample.
Choose the settings
Enter dimensions using the source’s decoded pixel coordinates.
Review and export
Inspect the processed preview and download the flattened output.
Try the supplied example
Inputs
source: Generated sample; rectangles: 80,300,900,180; mode: Solid black; radius: 24
Result
The example covers a 900 × 180 region beginning at x=80, y=300 with black pixels.
What it means
Inspect the entire exported file; the unchanged original still contains the private information.
Common mistakes to avoid
Blur can leave sensitive details recognizable
Blur can leave sensitive details recognizable.
Do not share the unchanged original
Do not share the unchanged original.
Frequently asked questions
Definitions, edge cases, and practical next steps for this tool. Search all tool FAQs ↗
Is blur secure redaction?
No. Shapes and details may remain recognizable or inferable.
What does solid coverage do?
It replaces the selected output pixels with black.
Is the original modified?
No. Download and share the flattened export only.
Can I cover several areas?
Yes. Supply up to 20 rectangles.
Does this remove metadata?
Original metadata is not copied into the canvas export.
Is everything private automatically found?
No. You choose and verify every sensitive region.
Are my inputs uploaded or stored?
Processing happens locally in your browser. This tool does not upload inputs. Downloads stay on your device; sharing or opening them in another service is your choice.
What should I check before using the output?
Blur is not reliable redaction. Solid coverage protects only selected pixels; check all visible information and share only the flattened export. Limits: 25 MB total, 20 images, 16 million pixels per source and output, and 8,192 pixels per side. Files are flattened, metadata is not copied and animations become one frame. JPEG uses a white background for transparency.
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Sources and method
Use the references below to check definitions and platform guidance. The model’s scope and limits are explained above. Read our editorial standards.