How to Resize an Image (to Any Size, Free)

To resize an image, set the exact width and height (or a percentage) you need — use Image Resizer, enter your target dimensions, and download, all in your browser with no upload. Here's how to resize without distortion, and when to crop instead.

Resize to exact pixels

Open Image Resizer, type the width and height in pixels, and keep "lock aspect ratio" on so the image scales proportionally (no stretching). This is the go-to for hitting a required size like 1200×630 for a social share image.

Resize vs crop — they're different

Resizing changes the pixel dimensions while keeping the whole image; cropping trims the edges to change the shape. To change an image's shape (say square to 16:9) without squashing it, crop with the Image Cropper — see aspect ratio explained.

Keep the file small too

Resizing to display size is the biggest file-size win there is (a 4000px photo shown at 800px is 25× too much data). After resizing, run it through the Image Compressor to shrink further — the full method is in how to compress an image.

Bottom line

Enter your target dimensions in Image Resizer, keep the aspect ratio locked, and download — free, no watermark, nothing uploaded. Crop instead when you need to change the shape.