AI Image Upscaler
Upscale images up to 4× and bring back detail that matters.
Only edit images you own or are authorized to edit. QingJiao Image does not support copyright infringement or removing platform protections.
2× or 4× without losing the look
The upscaler enlarges your image with Lanczos resampling, then applies edge-aware smoothing and an unsharp pass to keep details crisp and avoid the plastic look of naive scaling. Output is capped at 8192 px on the long edge.
- 2× — print, Retina displays, faster processing
- 4× — e-commerce close-ups, posters, wallpapers
- Great for screenshots, old photos, product photos and AI-generated art
How to use
- Upload a low-resolution image.
- Choose 2× or 4×.
- Click Upscale and compare Before / After.
- Download the HD result. Each upscale uses 1 credit.
Frequently asked questions
How much can I upscale?
2× and 4×. A 1000 px image becomes 2000 px or 4000 px on the long edge.
Will it look artificial?
We combine Lanczos resampling with edge enhancement and unsharp masking to keep textures natural. Very low-resolution photos will still show softness.
Is there a size limit?
Input up to 12 MB and 4096 px on the long edge; output is capped at 8192 px to protect quality and memory.