Online Image Resizer

Resize any image to exact pixel dimensions or scale by percentage. Lock the aspect ratio to prevent distortion, or resize freely. Perfect for social media images, thumbnails, profile pictures, or web assets.

About image resizing

Image resizing changes the dimensions of your image while maintaining or adjusting quality. Downscaling reduces dimensions and file size, while upscaling increases them. This tool uses the browser's Canvas API for high-quality interpolation.

Resize by exact pixels or percentage
Lock aspect ratio to prevent distortion
Quick presets: 25%, 50%, 75%
Preview with original vs new dimensions
Maintains quality using Canvas API
100% private — your images never leave your device

100% free. No signup. No data uploaded anywhere.