Image Resizer

Change an image's width and height in pixels. Lock the aspect ratio to resize proportionally, or unlock it for exact custom dimensions.

Your files are processed 100% locally in your browser. Nothing is ever uploaded to any server.

Drop an image here, or click to choose a file

JPG, PNG or WebP, up to 25 MB

image/jpeg • image/png • image/webp

How to use this tool

1Step 1

Upload an image using drag-and-drop or the file picker.

2Step 2

Enter target width or height in pixels.

3Step 3

Toggle Lock Aspect Ratio to preserve dimensions.

4Step 4

Download the resized image.

Do you store or see my file?

No. All processing happens 100% locally in your browser using built-in Web Platform APIs. Your files are never uploaded to any server.

Does resizing affect file quality?

Downscaling preserves sharpness; upscaling raster images beyond original dimensions can look soft.

Discover more utilities

Image Compressor

Reduce JPG, PNG or WebP file size by adjusting quality in your browser.

Image Cropper

Crop an image to custom pixel dimensions or common aspect ratios (1:1, 16:9, 4:3, 9:16).

Rotate & Flip Image

Rotate images 90°, 180°, or flip horizontally and vertically in your browser.