Utilz
Image Upscaler
Enlarge images to 2x, 3x, or 4x resolution
Upload Image
Drag & drop an image here or click to browse
Why Use This Tool?
- Quickly enlarge small images for presentations, social media, or print without needing desktop software.
- Choose from 2x, 3x, or 4x scale factors to match your exact resolution needs.
- All processing happens locally in your browser — your images stay on your device.
- Free to use with no signup, no watermarks, and no file limits.
How to Use
- Upload an image (JPG, PNG, WebP, etc.)
- Select the upscale factor (2x, 3x, or 4x)
- Click "Upscale" to process
- Download the enlarged image
FAQ
How does the upscaling work?
This tool uses the browser's high-quality bicubic interpolation to enlarge images. It smoothly scales pixel data to the target resolution using the Canvas API.
Will upscaling make my image look blurry?
Some softening is expected when enlarging raster images, especially at 4x. The tool uses high-quality smoothing to minimize artifacts. For best results, start with the highest resolution source available.
What is the maximum upscale factor?
4x is the maximum supported scale. For a 1000x1000 image, this produces a 4000x4000 result.
Is this AI-powered upscaling?
No. This tool uses browser-based bicubic interpolation, not AI/ML super-resolution. It is fast and private but does not add detail that was not in the original image.