Resize Image
Resize images to any dimensions for free. Private, browser-based image resizer with aspect-ratio lock — no uploads.
ファイルをアップロード
Drag and drop files here, or click to browse
Processed entirely in your browser. Your images never leave your device.
このツールについて
Resize Image scales your images to exact pixel dimensions, with an optional aspect-ratio lock so they never look stretched. The source format is preserved.
Resizing happens entirely in your browser — nothing is uploaded, and there is no sign-up or watermark.
使い方
Upload an Image
Drag and drop a PNG, JPG, or WebP image, or click to select it.
Enter Dimensions
Type a new width or height; keep the aspect lock on to scale proportionally.
Resize & Download
Click Resize to generate and download the new image.
活用シーン
Social Media
Resize images to fit platform requirements.
Thumbnails
Create smaller preview images quickly.
Upload Limits
Scale down oversized images to meet dimension caps.
よくある質問
Will resizing distort my image?
Not if you keep the aspect-ratio lock enabled — width and height scale together.
Does it change the format?
No, the output keeps your original format (PNG, JPG, or WebP).
Is it private?
Yes — resizing runs entirely in your browser.