AI
AI image upscaler
Bigger, and still sharp.
Enlarge small images 2× or 4× with an AI model that rebuilds detail instead of blurring it.
How much bigger
Downloads once on first use, then runs offline. Your images are never uploaded.
Without WebGPU this runs on the processor and takes a while — images up to 0.4 MP only. Chrome or Edge will be much faster.
How did this tool do?
Guide
How to use it
- 01Drop a small image — the smaller it is, the faster this goes.
- 02Choose 2× or 4×, then tap Upscale. The model downloads once.
- 03Compare against the original and download.
Good to know
Questions, answered
How big an image can I upscale?
About 1.2 megapixels with WebGPU (Chrome or Edge), or 0.36 megapixels without it. The image is processed in tiles, so memory stays low, but each tile takes time.
What's the difference between 2× and 4×?
2× rebuilds fine detail in a reasonably clean image. 4× is trained on compressed photos, so it also smooths out JPEG blocking — useful for old or heavily shared pictures.
Can it recover detail that isn't there?
No. It predicts plausible detail from what it can see. Faces and text improve a lot; unreadable text stays unreadable.
Is my image sent to a server?
No. The AI model itself is downloaded to your browser the first time you use the tool, then everything runs on your device — the image never leaves it. After that first download the tool works offline.