Upscale images with AI
Enlarge small or low-resolution images by 2x or 4x. The ESRGAN model reconstructs edges and textures, so results look sharp rather than blurry.
Drop a file here or click to choose
You can also paste with Ctrl+V
How to use the Image Upscaler
- 1
Drop the image you want to enlarge.
- 2
Choose 2x or 4x and the output format.
- 3
Compare with the original and download the upscaled image.
Why use the Zenixbase Image Upscaler
Real AI super-resolution
Generates new detail instead of simply stretching pixels.
GPU accelerated
Runs on your graphics card through WebGL, in the browser.
Private
Your image never leaves your device.
Before/after slider
See exactly how much sharper the result is before downloading.
Frequently asked questions
What's the maximum image size?
Up to about 4 megapixels for 2x and 1 megapixel for 4x. Larger images are scaled down first so your browser doesn't run out of memory.
How long does upscaling take?
Usually a few seconds to a minute, depending on the image size and your device's graphics card.
Which works best: 2x or 4x?
2x gives the most natural results for photos. 4x is great for small images, icons and old low-resolution pictures.