About UpscaleFast
The fastest free AI image upscaler on the web.
Our Mission
We believe everyone deserves access to professional-quality image enhancement tools. Whether you are a photographer, e-commerce seller, designer, or just someone who wants their photos to look better, UpscaleFast makes AI-powered image upscaling accessible to all.
How It Works
UpscaleFast uses Real-ESRGAN, a state-of-the-art AI super-resolution model developed by researchers at Tencent ARC Lab. Unlike traditional upscaling that simply stretches pixels, Real-ESRGAN uses deep neural networks trained on millions of image pairs to intelligently reconstruct missing detail, producing sharper, cleaner, and more natural results.
What Makes Us Different
No hidden limits, no watermarks, no forced sign-ups. Upload and upscale as many images as you need.
Our GPU-accelerated pipeline processes most images in under 10 seconds. No queuing, no waiting.
All images are automatically deleted within 24 hours. We never view, share, or sell your images.
Every upscaled image is yours to use however you want — personal projects, client work, e-commerce, social media.
Supported Formats & Limits
- Formats: JPG, PNG, WebP
- Max file size: 4 MB
- Max dimensions: 6000 x 6000 px
- Upscale options: 2x, 3x, 4x
Get in Touch
Have feedback, questions, or partnership inquiries? Visit our contact page or join our Discord community.