Upscale images 2x or 4x with on-device AI
Turn a small, soft image into a larger, crisper one. The AI adds real detail instead of just stretching pixels, and you can compare before and after with a slider.
- On your devicePhotos are never uploaded
- Free, no watermarkNo credits or paywall
- No sign upOpen and start editing
- Works offlineOnce a tool has loaded
Made possible by open source: inpaint-web, Real-ESRGAN and ONNX Runtime Web. See all credits.
How to use Image Upscaler
- 01
Drop a small or blurry image.
- 02
Choose 2x or 4x.
- 03
Wait while the AI rebuilds the detail, compare, then download.
Detail, not just pixels
Ordinary resizing makes images bigger and blurrier. The AI model was trained to rebuild edges and textures, so text, faces and products look sharper at the new size.
Runs on your graphics chip
On browsers with WebGPU the model runs on your graphics chip for speed. Everywhere else it still works on the CPU, just a little slower.
Great for
Old photos, small product images, screenshots, artwork for print, thumbnails and images saved from chats that lost their quality.
Frequently asked questions
How big can the result be?
Up to about 16 megapixels, for example 4096 by 4096, which keeps it working on phones too.
How long does it take?
A few seconds to a minute depending on the image size and your device. A progress bar shows how far along it is.
Is my photo uploaded?
No. Everything runs in your browser, so your photo never leaves your device.
More ways to use it
More free tools
Remove Background
Remove the background from any photo in seconds with on-device AI.
AIObject Remover
Paint over anything you want gone, like people, text, wires or blemishes, and on-device AI fills the gap naturally.
AIBlur Background
Blur the background of any photo for a portrait mode look.
AIWhite Background
Turn any background white in one click.