QuickKit
Exact pixels, no upload

Image Resizer

Change image width and height, preserve the original aspect ratio, and export the result without sending the file anywhere.

Works withJPG, PNG, WebP
ResultOriginal format where supported
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Processed in your browserNo signup · No watermark · No tracking scripts
How to use it

Three steps. That’s it.

  1. 1

    Add a JPG, PNG, or WebP image.

  2. 2

    Enter dimensions or pick a preset. Keep the aspect-ratio lock on to avoid stretching.

  3. 3

    Review and download the resized image.

Good to know

Frequently asked questions

Will resizing crop my image?

No. This tool scales the full image to the dimensions you enter. If the aspect-ratio lock is off, the image can stretch.

What size should I use for a YouTube thumbnail?

1280 × 720 pixels is the standard 16:9 thumbnail size.

Does the image leave my device?

No. Resizing happens inside your browser.

Keep going
Image CompressorCompress JPG, PNG, and WebP images in your browser.Aspect Ratio CalculatorSimplify a ratio or calculate a matching width or height.Image Dimensions CheckerCheck pixel dimensions, aspect ratio, format, and file size.