Image Resizer
Resize images to exact dimensions, with optional aspect lock
What is Image Resizer?
This image resizer scales a picture to the width and height you specify, locking the original aspect ratio by default so nothing gets distorted, and offering presets for common widths. Scaling uses high-quality interpolation and runs entirely in the browser, so the image is never uploaded.
How to use Image Resizer
- 1Choose an image — the width and height fields are filled in with its original dimensions.
- 2Edit either the width or the height; with the aspect ratio locked, the other value follows automatically.
- 3Or just click one of the common width presets.
- 4Download the PNG result, and run it through the compressor afterwards if you need a smaller file.
Frequently asked questions
Will upscaling an image make it sharper?+
No. Scaling only interpolates new pixels from the ones that already exist; it cannot invent detail that was never captured, so enlarging always looks softer. The only ways to get a sharp larger image are to obtain a higher-resolution original or to use a model-based super-resolution tool.
Why does the resizer output PNG?+
So that resizing does not introduce lossy compression on top of the scaling — the result differs from the original in size only. If you want a smaller file, hand the output to the image compressor and convert it to WebP there, keeping both steps under your control.
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