Free Image Resizer - Resize Images Online
Upload any image and resize it to exact dimensions. Maintain aspect ratio or set custom width and height. Download as PNG, JPG, or WebP.
Drop an image here or click to select
PNG, JPG, WebP, GIF - Up to 15 MB
PNG, JPG, WebP - Up to 15 MB each
Quick Presets
How to Use the Image Resizer
- Click the upload area or drag and drop your image file onto it.
- Enter your desired width and height in pixels.
- Check "Lock aspect ratio" to maintain the original proportions (recommended).
- Choose your output format: PNG for transparency support, JPG for photos, WebP for smaller file sizes.
- 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.