What Sharpen Image does
Sharpen Image enhances edge contrast to make a soft photo look crisper, with adjustable strength.
- Sharpen Image
How do I sharpen a blurry image?
Sharpen Image lets you sharpen a blurry image by uploading an image; the tool enhances edge contrast to make a soft photo look crisper, with adjustable strength. Preview the result and download it. Everything runs in your browser, so your photo is never uploaded.
- The tool enhances edge contrast to make a soft photo look crisper, with adjustable strength
- Instant live preview
- Download as JPG, PNG or WebP
- 100% client-side
What is
Sharpen Image
A tool that enhances edge contrast to make a soft photo look crisper, with adjustable strength in the browser.
Image Tools
Related terms
sharpenunsharp mask
Frequently Asked Questions
Yes, completely.
Sharpen Image is free with no signup, watermark or limits.
No unnecessary loss.
The effect is applied at full resolution and exported without extra recompression unless you choose a lossy format.
No.
The effect is applied locally with the Canvas API in your browser.
Detailed Explanation
How it works
An unsharp-mask convolution boosts edge contrast on a canvas at your chosen amount.
- Canvas pixel processing
Use cases
Recover detail in slightly soft photos, emphasise textures, or crisp up scans.
- Photo editing
Limitations
The effect is applied uniformly in the browser; results depend on the source image and cannot recover detail that is not present.
- Source-dependent
Privacy
The image is processed entirely in your browser with the Canvas API; nothing is uploaded to a server.
- 100% local
- No upload