How to upscale an image in 3 steps
Upload a photo
Drop your image above, or click to choose one.
Pick a size
Choose 2×, 3× or 4× and adjust the sharpening until it looks right.
Download
Save the larger image as PNG, JPG or WebP — all on your device.
Getting the best result
Start from the largest original you have. Upscaling can't recreate detail that was never captured — it enlarges and sharpens what's there.
Use sharpening in moderation. A little makes edges crisp; too much adds halos and noise. Compare the preview as you slide.
Try AI enhance for small photos. The optional ✨ AI enhance button runs a Real-ESRGAN neural network in your browser to reconstruct sharper edges and texture — noticeably better than plain resampling on small images. It takes ~10–30 seconds and still runs entirely on your device.
Then compress if needed. A 4× image is a big file — compress it for the web, or resize to an exact size. See our resize guide.
Frequently asked questions
Is this image upscaler free?
Yes — completely free, no sign-up, and no limit on the number of images.
Are my images uploaded?
No. Upscaling happens entirely in your browser, so your images never leave your device.
How much can I enlarge an image?
Up to 2×, 3× or 4×. The output is capped at 4096 px on the longest edge to keep it fast and stable.
Does upscaling add real detail?
Plain upscaling can't invent detail that wasn't captured, but stepped resampling plus sharpening looks noticeably crisper than a plain stretch. For small images, the optional AI enhance reconstructs sharper detail with a neural network.
How does AI enhance work?
It runs a Real-ESRGAN super-resolution model right in your browser to enlarge the image 4× with sharper, cleaner detail. It takes about 10–30 seconds and, like everything here, runs on your device — nothing is uploaded.
What formats can I download?
PNG, JPG or WebP.