Image Upscaler (AI 2x / 4x)
Enlarge small or blurry photos 2x or 4x with AI, in bulk.
ℹ️ First use downloads the AI model once (≈ 5 MB). Upscaling runs on your device and is slow without a graphics card: a 500×500 photo can take around a minute. Close other tabs for best results.
Advanced settings
How to use Image Upscaler (AI 2x / 4x)
Make small images larger and sharper using the Real-ESRGAN AI model, which runs on your own device. It works best on small photos, screenshots and low-resolution pictures. It is compute-heavy: on a normal CPU a small image can take a minute or more, and larger images are refused with a tip to shrink them first.
- Add small images (about 500×500 px works well on most devices).
- Choose 2x or 4x.
- Process (this can take a while) and download.
FAQ
Is my photo uploaded?
No. The AI model runs in your browser and your photo never leaves your device.
Why is it slow?
Real AI upscaling needs a lot of computation. Phones and older laptops are slowest. Computers with a modern graphics card and a WebGPU-capable browser can be much faster.
Why was my image refused?
Very large images would need too much time and memory. Shrink the image first (for example with our Image Resizer), upscale, or upscale smaller crops.