About the Free Sharpen Image Tool

The Sharpen Image tool makes soft or blurry photos look crisper using an adjustable unsharp mask. Tune the sharpening strength and blur radius, preview the effect at full resolution, and download the result as PNG or JPG — all in your browser.

Key Features

• Unsharp Mask Effect: A real image-processing sharpen that enhances edge contrast without the harsh look of simple convolution filters.
• Adjustable Strength: Dial the effect from 0% to 300% to match your photo.
• Three Blur Radii: Fine, Medium, or Broad control how far around each edge the effect spreads.
• Full-Resolution Processing: Images up to 2000px are processed at native resolution; larger images are handled up to that cap for speed.

When Should You Sharpen a Photo?

Sharpening is the classic final step in photo editing. Use it to rescue slightly out-of-focus shots, add crispness to product photos, or restore detail after downscaling. A little goes a long way — start around 100–150% and increase only if the edges still look soft.

How It Works

1. Upload your image.
2. Move the Sharpening Strength slider and watch the preview update.
3. Choose Fine, Medium, or Broad blur radius.
4. Download the sharpened image as PNG or JPG.