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Image upscaler

Double or quadruple the pixel size of a picture — and keep in mind it cannot invent detail that was never there.

Pick a file to start.

The converted preview appears here.

Upscaling redraws a small image at a bigger size. This tool uses the browser's high-quality interpolation: edges stay smoother than a basic stretch, but no new detail appears. For sharpening small photos or line art, start from the largest original you have; for logos and icons, a vector version is always better.

How to use it

Step 1. Drop an image
Step 2. Pick 2×, 3× or 4×
Step 3. Download the PNG at the new size

Questions

Does enlarging add detail?
No. Interpolation guesses pixels between existing ones; it cannot recover detail that was not captured. Output is smoother, not sharper.
What sizes make sense?
Small images and screenshots upscale reasonably at 2×; beyond 3× the softness becomes visible.
Is my image uploaded?
No — the resizing happens on a canvas in your browser.

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