Image Resizer

Resize images to custom width and height in your browser. Preserve aspect ratio, use presets, or fit images into a canvas.

Select an image

Use cases

Set exact width and height for thumbnails, social previews, documentation assets, and product images.

Keep the original ratio, pick a preset, or fit the image into a canvas with a background color.

Review how the resized output will look before downloading the generated image.

Does resizing preserve aspect ratio?+

Enable Keep aspect ratio or choose a preset to preserve proportions.

Is the file uploaded?+

No. Resizing happens locally.

Endpoint

POST/api/image/resize

Request

{
  "file": "photo.png",
  "width": 1200,
  "height": 630,
  "fit": "contain"
}

Response

{
  "file": "photo-1200x630.png"
}