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MGToolbox

Image Quality Analyzer

Analyzer100% In-Browser

Check sharpness, exposure, contrast, resolution, and compression artifacts before you upload or print — with honest verdicts.

Drag and drop your images here

Supports JPG, PNG, WebP, GIF (Max 50MB)

100% In-Browser • Files are processed 100% locally
Zero Data Collection
Files are processed 100% locally
Instant Client-Side Speed
Zero network upload delays
Free & Unlimited
No registration or credit card needed

Analyze Image Quality — Sharpness, Exposure, Contrast, Artifacts

Upload a photo and get a straight answer before you publish or print it: a Laplacian-energy sharpness score, mean brightness, contrast spread, resolution and megapixels, and an estimate of how visibly JPEG-compressed the file already is — each with a plain-language verdict.

These are classical signal measurements computed on your device, not AI opinions — which means the same photo always gets the same score. It is especially useful for picking the best shot among near-duplicates, or deciding whether a compressed download is good enough to print.

Frequently Asked Questions

Everything you need to know about using Image Quality Analyzer safely and efficiently.

It measures local luminance edge energy (Laplacian). In-focus photos score high; blurred or upscaled ones score low. 60+ is sharp, under 15 is blurry.
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