convert

Resize Image

Resize an image to exact pixel dimensions.

Runs on your deviceBatch ready

Set width and height in pixels. Leave one at 0 to keep aspect ratio.

Add images

PNG, JPG, WebP, HEIC, SVG — anything your browser can decode.

Drop images here
Drag and drop, or choose files
PNGJPGJPEGJFIFWEBPBMPSVG+2

Choose an output

Resize an image to exact pixel dimensions.

Fine-tune

Optional — sensible defaults are already set.

Resize

Set either side to 0 to keep the aspect ratio automatically.

Background

JPEG can’t store transparency, so transparent pixels are flattened into this color.

About Resize Image

Resize an image to exact pixel dimensions. Enter a width and height, or set one of them to 0 and the other is calculated to keep the original aspect ratio. The result is saved as a JPG, which keeps files compact for sharing and uploading.

When it helps

  • Meeting upload rules such as "photo must be 600x600 pixels" on application and ID forms.
  • Downsizing large camera photos to a reasonable width for a blog or website.
  • Making a set of images the same width for a consistent layout.

Tips

  • Set height to 0 and enter only a width (or the reverse) to avoid stretching. Entering both values forces those exact dimensions.
  • Making an image smaller works well. Making it much larger only spreads existing pixels, so it will look soft.
  • The output is JPG, so transparent areas are filled with the background color you choose. Use Upscale Image or Crop Image if you need PNG output.

Good to know

Quick answers about resize image in your browser.

Fill in only width or only height and leave the other at 0. The missing side is calculated from the original aspect ratio.

Making an image smaller in pixels almost always reduces file size significantly, since there are fewer pixels to store.

Yes. There is no sign-up, no watermark and no limit on how many files you process.

No. Files are read and processed locally in your browser, so they never leave your device.

Related tools

IMGImage to PNGConvert still image files to PNG. Animated GIFs export the first frame.IMGImage to JPGConvert images to JPEG with quality and background controls.IMGImage to WebPConvert images to WebP using the browser canvas encoder.IMGWEBP to PNGConvert WEBP images to PNG for broader compatibility.IMGJFIF to PNGConvert JFIF/JPEG images to PNG.IMGPNG to SVGTrace simple PNG artwork into an SVG vector file.IMGHEIC to JPGConvert iPhone HEIC/HEIF photos to JPG.IMGHEIC to PNGConvert HEIC/HEIF photos to PNG.IMGWEBP to JPGConvert WEBP images to JPEG.

Part of the Image Editor collection.