Choose the image you need to prepare for a site, form, or document.
Local image resizer
必要なピクセルサイズに画像を変更します。
元画像をアップロードせず、ブラウザーで PNG・JPEG・WebP のサイズを正確に変更します。
* Your image stays in this browser. No upload, account, or server copy.
Local image resizer
Make every image fit its destination
Set an exact width and height, or use a percentage with the aspect ratio preserved.
Download the new copy and check it in the destination where it will be used.
FAQ
What does ScaleSift change?
Does ScaleSift upload my image?
No. The image is decoded, resized, and exported in this browser tab.
Will the image look exactly the same?
Downscaling can preserve a sharp result. Enlarging adds interpolated pixels and may soften detail.
Can I make a stretched image?
Turn off Keep aspect ratio to set both output edges independently. JPEG and WebP are re-encoded at the selected quality.