Free AI Image Upscaler
Super-resolution that recovers real detail.
About the AI Image Upscaler
Free AI image upscaler. Enlarge photos 2–4× with a real ESRGAN super-resolution model that runs entirely in your browser — recovering genuine detail, not just smoothing. Your image is never uploaded.
How it works
- 1
Add an image
Up to 1500px on the long side.
- 2
Pick a scale
2×, 3× or 4×.
- 3
AI upscale
The model runs on your device; download the result.
Frequently asked questions
The regular Image Upscaler uses fast smoothing. This one runs a real ESRGAN AI model that reconstructs detail for sharper results — but it's slower and best on smaller images.
No. The AI model runs in your browser via TensorFlow.js; only the model weights are downloaded (once). Your image never leaves your device.
AI upscaling is memory-heavy. Very large images can crash the browser tab, so inputs are capped at 1500px on the long side — resize first if needed.