Resize Image (PNG, JPEG)

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Resize

Resize images online without installing software

Use this image resizer to change the pixel dimensions of a JPG, JPEG, PNG, or other common image file. It is useful when a website, marketplace, social network, or email form requires a specific image size. Resize a profile photo, product image, banner, thumbnail, or presentation graphic, then download the updated file straight away.

Image dimensions are measured in pixels. Reducing dimensions usually makes a file quicker to upload and download; increasing them makes an image larger but cannot create detail that was not present in the original. For the sharpest result, start with the largest original image available.

How to resize an image

  1. Click Select a file, or drag an image into the upload area.
  2. Enter the required width and height in pixels. Check the target platform’s image requirements if you need an exact size.
  3. For PNG artwork, select Transparent Background when you need transparent areas preserved in the output.
  4. Click Resize, then save the resized image when the download is ready.

Choose the right dimensions

Keep the same aspect ratio when you want to avoid a stretched or squashed image. For example, a 1600 × 900 landscape image can be reduced to 800 × 450 while keeping its original shape. If a destination requires a square image, use an image crop tool first or accept that changing both values independently may alter the proportions.

Tip: Make a copy of the original before resizing. A smaller version is ideal for publishing, while the original is useful if you later need a larger export.

Image resizer FAQ

Can I resize a PNG with a transparent background?

Yes. PNG transparency is supported. Use the transparency setting when your logo, icon, or cut-out image needs transparent areas in the result.

Will resizing improve a blurry image?

No. Enlarging an image increases its dimensions but cannot restore missing detail. Downscaling a high-resolution image is usually the best way to produce a clean result.

What size should I use for web images?

Use the display size required by your layout, then test the page on desktop and mobile. Avoid uploading a much larger image than visitors will see, because it can slow page loading.