Online Image Sharpen
Sharpening Images for Clarity
Image sharpening enhances edge contrast to make photos appear clearer and more detailed. It works by increasing the contrast between adjacent pixels where edges are detected. Most digital photos benefit from some sharpening, especially those from smartphone cameras or images that have been resized.
Be careful not to oversharpen, which creates unnatural halos around objects and increases noise. A small amount of sharpening (10-30%) is usually sufficient for most images. For best results, sharpen after resizing, not before.
- A little goes a long way — start with 10-20% and adjust up
- Always sharpen AFTER resizing, not before
- Oversharpening creates white halos around edges — avoid this
- Portraits usually need less sharpening than landscapes or product photos
- Unsharp mask algorithm
- Adjustable strength (1-100%)
- Enhance fine details
- Fix slightly blurry photos
How to Use
- Upload your image
- Adjust sharpening amount
- Download your sharpened image
FAQ
How do I sharpen a blurry photo?
Upload your blurry photo and adjust the sharpen amount. Start with 20-40 for slightly blurry photos, higher for more blur.
Is this tool free to use?
Yes! All Image Tools are 100% free with no limits, no registration, and no watermarks.
What image formats are supported?
PNG, JPG, WebP, GIF, BMP, and SVG formats are all supported.
Are my images private and secure?
Yes! All processing happens in your browser. Images never leave your device or get uploaded to any server.