UltraResizer

AVIF is a modern image format that provides superior compression compared to JPEG and PNG without losing quality. It makes your website load faster and saves bandwidth.

When you upscale an image (make it larger), it naturally becomes blurry. Our Smart Sharpen algorithm uses a convolution matrix to detect edges and boost contrast locally, restoring the perception of detail and making the image look crisp like a 4K photo.

Absolutely. Unlike other tools, your images are never uploaded to our servers. All resizing and processing happens inside your web browser (Chrome, Safari, Firefox, etc.) on your own device.