Yes. There's no account, no watermark and no limit on how many images you upscale. The work happens on your own device, so an image costs Leap nothing.

Is my image uploaded anywhere?

No. Your browser reads the image and upscales it inside the tab. The only download is the model itself, from Leap's file storage, the first time you use the tool.

How large can my image be?

Up to 1024 pixels on the long side for 4x, and up to 2048 for 2x. The result can't pass 4096 pixels, because phone browsers refuse larger images.

Does it work on a phone?

Yes, in a recent Safari or Chrome. A phone without WebGPU upscales on its processor, which takes longer, so start with a small image.

Can it fix a blurry photo?

Partly. It sharpens edges and cleans up compression, but it can't undo a photo that was out of focus or shaken.

Which model does it use?

Real-ESRGAN's general model (realesr-general-x4v3) by Xintao Wang and others, open source under the BSD 3-Clause license, which allows commercial use.

Free Image Upscaler

Upscale an image to 2x or 4x its size for free, with no signup and no watermark. An AI model draws in the sharp edges and texture that plain resizing blurs. It runs in your browser, so your image is never uploaded.

Drop an image here, or paste oneJPG, PNG or WebP, up to 2048 px on the long side. Nothing is uploaded. The first image downloads the 2.4 MB model, once.

No image handy? Try one of these:

How it works

The first time you add an image, your browser downloads Real-ESRGAN, an open-source upscaling model of 2.4 MB, and keeps it for next time. The model goes through the image in tiles, each reading a little past its edges so the seams don't show, and makes every tile four times as large. For 2x, the tool averages that result down to half.All of it happens on your device. In a browser with WebGPU, which recent Chrome, Edge and Safari have, it runs on your graphics card and a small image takes a few seconds. Elsewhere it runs on the processor, which can take a minute or more. Your image isn't sent to Leap or to anyone else, so there's no daily limit and no watermark.

What it does well, and where it struggles

Small photos and thumbnails
Landscapes, fur and other fine texture
Product photos that were saved too small

It can't bring back detail the image never had. Very small faces come out smooth, almost painted, and small text stays unreadable. It cleans up JPEG blocks but can't undo a photo that was out of focus or shaken. Images over 2048 pixels on the long side are too large for it, because the result would pass 4096 pixels.

2x or 4x, PNG or JPG

4x makes each side four times as long, so a 500 × 400 image becomes 2000 × 1600. 4x works on images up to 1024 pixels on the long side, and 2x on images up to 2048. PNG keeps every pixel and any transparency; JPG files are much smaller and suit photos.

When you need more than this

For a print or a client, the Leap studio has upscalers that go further. Recraft Crisp Upscale takes extra care with faces and small detail, and Recraft Creative Upscale redraws an image at about 16 megapixels with new fine detail. They run on Leap's servers and are paid per image. This upscaler stays free.