Resizes an image to given dimensions (optionally keeping aspect ratio).
Image Resize is a browser-based tool that scales an image to the width and height you specify, with an option to keep the original aspect ratio. Drop in any image your browser can decode (PNG, JPEG, WebP, GIF, and similar), enter target dimensions, and preview the result before downloading it. It's handy whenever you need to quickly change an image's dimensions without installing an editor.
No. The image is decoded and redrawn entirely in your browser using a canvas, and nothing is sent anywhere. The whole tool runs client-side, so your files never leave your device.
The resized image is always exported as a PNG and downloaded as resized.png, regardless of the input format. PNG is lossless, so the output keeps full quality at the new dimensions.
When enabled, the tool scales the image to fit within the width and height you provide without distorting it. If you fill in only one dimension, the other is computed automatically from the original proportions.
Blank fields are treated as 'auto.' With aspect ratio locked, the tool scales from whichever dimension you set; if both are blank, the image keeps its original size.
Any image type your browser can decode is accepted, which typically includes PNG, JPEG, WebP, and GIF. The tool relies on the browser's built-in image decoder rather than a custom parser.