Browser-based image workflow
Document Scan Cleanup
Grayscale, contrast, black-and-white threshold and manual straightening.
Settings
Choose an image to begin.
Privacy: This published tool does not upload your selected files. Photos remain within this browser session unless you explicitly download an export. Large images may use significant device memory.
How to use Document Scan Cleanup
- Select a supported source image from your device.
- Adjust the options and, for drawing tools, place annotations directly on the canvas.
- Select Process locally, inspect the output or its manifest, and download your results.
What this tool does
Improve contrast and manually straighten a photographed page, all within the browser. Improve contrast and manually straighten a photographed page, all within the browser.
Limitations
Does not perform OCR or perspective correction, and rotating may trim corners.
Decoded images are limited to 30 megapixels and 16,384 pixels per side; larger raster workflows can exceed browser memory even below these limits. Files must be 20 MB or smaller each and selection must be at most 120 MB. Animated inputs are rendered as a still frame; browser decoder capabilities differ. No paid APIs or server-side image upload endpoints are used.
Discover other image workflows or review our processing privacy notes.