Free Image Resizer - Resize Images Online

How to Use the Image Resizer

1. Click the upload area or drag and drop your image file onto it.
2. Enter your desired width and height in pixels.
3. Check "Lock aspect ratio" to maintain the original proportions (recommended).
4. Choose your output format: PNG for transparency support, JPG for photos, WebP for smaller file sizes.
5. Click "Resize & Download" - Your resized image will download automatically.

File size limit: 15 MB. Supported formats: PNG, JPG, WebP, GIF, BMP, TIFF.

How to Resize Images in GIMP

For more control over resizing, use GIMP directly:

Resize the Canvas (Scale Image)

Go to Image → Scale Image. Enter your target width or height. The chain icon locks the aspect ratio. Choose your interpolation method - Cubic or Sinc (Lanczos3) give the best quality for downscaling. Click Scale.

Resize and Crop (Canvas Size)

Use Image → Canvas Size to change the canvas dimensions without scaling the content - Useful for adding borders or cropping without scaling.

Batch Resizing with Script-Fu

To resize many images at once, use GIMP's Script-Fu Batch Mode or the BIMP plugin.

Resize Targets That Usually Work

Downscaling usually improves sharpness and lowers file size. Upscaling can make images look soft because GIMP and browser tools must invent missing pixels. If you need a larger print, check the DPI calculator before resizing.