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Image Redaction & Mosaic

Choose imageor drop herePNG · JPG · WebP / 30 MB each (10,000 px per side, 60 MB and 20 MP total)

TreatmentMosaic block size

Black areas are applied to image pixels and saved as PNG. Mosaic does not guarantee anonymization.

Drag over the image to mark the area.

Output preview

Output preview

Runs in your browser. No upload.

© 2026 Tools.Processed in your browser.