Privacy Blur
Draw blur or black-box redactions over sensitive areas in images. Everything runs locally — nothing is ever uploaded.
Drop an image here or click to browse
PNG, JPEG, WebP, GIF supported
Frequently asked questions
Is my image uploaded to a server?
No. Privacy Blur uses the HTML5 Canvas API to process images entirely within your browser. Your image data never leaves your device.
What is the difference between Blur and Black box?
Blur applies a pixelated mosaic effect that obscures content while keeping the general shape visible. Black box replaces the area with solid black, which is stronger and used in formal document redaction.
Can I undo a stroke?
Yes. Click "Undo last" to revert the most recent brush stroke. Multiple undos are supported.
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