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Resize Image

Set new dimensions. Keep the right proportions.

  1. 01 · Choose input
  2. 02 · Configure
  3. 03 · Preview
  4. 04 · Download
Work in your browser

How to use Resize Image

Choose an image and enter new pixel dimensions. Keep aspect ratio enabled to update the other dimension automatically. Resize, review the result and download.

Example

An 800 × 400 image resized to width 400 with aspect ratio enabled becomes 400 × 200.

Limits and output

20 MB / 20 megapixels. Exports PNG. Animation becomes a still frame. Resizing changes pixels and does not certify DPI.

Good to know

RatTools is an early version of an everyday utility workspace. Image, text, calculation, and developer inputs are processed in your browser.

Your favorites, recently used tool IDs, and theme choice are stored on this device. Tool inputs are not saved. Hosting can receive ordinary page requests; this app includes no analytics.

Images to PDF, merge and split work locally. PDF compression is upcoming. This early version is excluded from search indexing.

Icons: Solar by 480 Design · CC BY 4.0. Components: Be UI and shadcn/ui.