The diffusion model is based on sdxl and can upscale images up to 4MP for free and without sign up. (6MPx for project supporters)
- Very good at restoring poor-quality photos
- Very good at upscaling small images
- Excellent at producing realistic / natural images
- A text prompt can help refine details
The only free, high-limit AI upscaler that doesn’t insult you with watermarks, nag screens, or signup walls.
- Free API (pypi.org/project/image-upscaling-api)
- Large image support up to 4096*4096
- Supports transparent images
This website can upscale your images by 4x using AI. And the best part: it is completely free & no sign-up required! It supports images up to 5000x5000px to be scaled up to 20k — a size where most services charge a ton of money for!
