Image Sharpness Analyzer
Score image sharpness from 0–100 using edge detection, entirely in the browser.
Privacy first: Your files never leave your browser. All processing happens locally on your device.
Drop an image here or browse
PNG, JPEG, WebP, AVIF — max 50 MB
Frequently Asked Questions
How is sharpness scored?
The tool uses a Sobel edge detection operator to compute gradient magnitude across the image. Higher average gradients result in higher sharpness scores (0–100 scale).
What does each rating mean?
Very Soft (0–20): extremely blurry. Soft (20–40): noticeably soft. Moderate (40–60): average sharpness. Sharp (60–80): good sharpness. Very Sharp (80–100): excellent edge definition.
Is this processed locally?
Yes. The image never leaves your browser. Analysis uses the Canvas API entirely on your device.