How to sharpen a blurry photo

Sharpening doesn't add missing detail — it makes the detail that's already there stand out. It works by increasing contrast along edges: where a light area meets a dark one, it brightens the light side and darkens the dark side a touch, and your eye reads that added contrast as crispness.

That's why sharpening is genuinely useful for a photo that's a little soft — slightly off in focus, or softened by resizing — but it can't rescue a photo that's truly out of focus or smeared by camera shake. Once real detail is gone, no amount of edge contrast brings it back.

The tool for this is unsharp mask, one of the 15+ filters in the EditItAll photo editor:

• Open the photo editor and load your image (PNG, JPG or WebP).
• Apply the unsharp mask filter.
• Raise the amount for a stronger effect, and set the radius to control how wide each edge is affected — a small radius suits fine detail, a larger one broad shapes.
• Zoom to 100% to judge it honestly, then export as PNG or JPG.

It all runs on your device — go offline after the page loads and it still works, so your photo is never uploaded.

The most common mistake is pushing sharpening too far. Tell-tale signs are bright halos outlining edges, and gritty texture appearing in smooth areas like skin or sky — the filter amplifying noise along with detail. Sharpening should be the last step, applied gently, and checked at 100% zoom rather than a shrunk-down preview that hides the artefacts.

For portraits, it helps to sharpen selectively. Using layers and selections, you can sharpen the eyes and keep skin soft, rather than sharpening the whole frame at once.

It's worth being honest about the limit: if a shot is badly out of focus or blurred by motion, sharpening will make it look grittier, not sharper, because there's no real detail underneath to enhance. There is no generative AI here that guesses missing detail — the editor works with the pixels you actually have. If the important part is a face or plate you'd rather hide than fix, blurring part of a photo is the tool for that instead. Otherwise, the honest answer is sometimes to reshoot.