Is my WebP uploaded to a server?

No. The WebP is enlarged entirely in your browser: it never leaves your device, and there's no queue and no account.

How is this better than normal resizing?

Normal resizing spreads the same pixels over a larger area, which blurs. This tool redraws edges and fine texture at the new size — the before/after slider shows the difference on your own image.

What format is the result?

JPG at the enlarged resolution for opaque images, or PNG when your WebP carries transparency.

Upscale WebP images

Upscale a WebP image to 2× or 4×, free and 100% in your browser. No upload, no signup — detail is rebuilt automatically at full resolution.

How to upscale an image

Drop or pick your WebP image.
Choose 2× or 4× — the enlargement runs entirely on your device.
Compare against the original with the slider and save the result.

About upscaling

WebP is a modern web format that is typically 25-35% smaller than JPG or PNG at the same quality, with transparency. WebP images are enlarged the same way — the result is delivered as JPG, or as PNG when your file has transparency.

Detail is rebuilt on your device as the image grows — edges and texture are redrawn instead of stretched, so small images come out crisp. Nothing is uploaded, and the full-size result is free. The first run downloads the upscaler (~9 MB) once; your browser keeps it for later visits.

Frequently asked questions

Is my WebP uploaded to a server?: No. The WebP is enlarged entirely in your browser: it never leaves your device, and there's no queue and no account.
How is this better than normal resizing?: Normal resizing spreads the same pixels over a larger area, which blurs. This tool redraws edges and fine texture at the new size — the before/after slider shows the difference on your own image.
What format is the result?: JPG at the enlarged resolution for opaque images, or PNG when your WebP carries transparency.