Image Sharpening Tool
Free Online Photo Clarity Enhancer
Transform blurry, soft photos into crisp, detailed images with our professional-grade Image Sharpening Tool. Using advanced unsharp mask technology, this free tool enhances edge definition and brings out fine details that make your images pop. Whether you're fixing slightly out-of-focus photos or preparing images for printing, our sharpening tool delivers exceptional results without the complexity of professional software. Best of all, all processing happens locally in your browser - your images never leave your device.
Key Features
Interactive before/after comparison with adjustable slider
Professional unsharp mask algorithm for high-quality results
Five preset sharpening profiles for different image types
Fine-tune amount, radius, and threshold parameters
Process multiple images simultaneously
Secure browser-based processing with no uploads
Simple drag-and-drop interface
Download instantly with original quality preserved
How to Use the Image Sharpening Tool
Upload your images by dragging and dropping files or clicking to browse
Select an image to preview from your uploaded files
Choose from available sharpening presets or customize settings
Use the slider to compare before and after results
Process all images with one click
Download your enhanced images
FAQs
What types of images benefit most from sharpening?
Images that are slightly soft or out-of-focus, photos taken in low light, images that lack detail definition, scanned documents, and pictures intended for printing all benefit significantly from sharpening.
What is unsharp mask and why is it better?
Unsharp mask is a professional sharpening technique used in high-end photo editing software. Unlike basic sharpening, it selectively enhances edges while minimizing noise enhancement, resulting in cleaner, more natural-looking images. Our tool implements this advanced algorithm directly in your browser.
Can sharpening fix severely blurry photos?
While sharpening can significantly improve moderately blurry images, it cannot recover details that weren't captured in the original photo. For best results, start with the highest quality image available and use the appropriate preset for your specific issue.
Will this tool work with my RAW camera files?
Our tool works with standard web formats (JPG, PNG, WebP). For RAW files, we recommend first converting them to JPG using your camera's software before sharpening.
What do the Amount, Radius, and Threshold settings control?
Amount: Controls the intensity of the sharpening effect (higher values create stronger sharpening)
Radius: Determines the size of the details to enhance (smaller values sharpen fine details, larger values affect broader edges)
Threshold: Sets which pixels get sharpened based on how different they are from surroundings (higher values focus sharpening on edges only)