Image Resizer

Change image dimensions and download the result without uploading your file to a server.

Image tool guide

Resize an image to exact pixel dimensions

Toolyma reads the original width and height, lets you enter new pixel dimensions and redraws the image at that size. The resized result can be previewed and downloaded as PNG.

The resize operation runs locally in your browser, and the original file remains unchanged.

How to use Image Resizer

Choose an image.Select a PNG, JPG, WebP or another browser-supported image.
Enter width and height.Type the exact output dimensions in pixels.
Resize the preview.Toolyma redraws the source at the requested size.
Download the PNG.Save the resized canvas as toolyma-resized.png.

Practical ways to use this tool

Fit an upload requirement

Create an image with the exact pixel dimensions requested by a platform.

Prepare a thumbnail

Make a smaller preview for a website or document.

Standardize visuals

Give several images a consistent canvas size one at a time.

Reduce display dimensions

Create a compact copy instead of serving an unnecessarily large image.

Privacy, quality and limitations

PNG output: the downloaded resized image is always PNG.
Aspect ratio: width and height are independent, so mismatched proportions can stretch or squash the image.
Upscaling: making a small source much larger cannot restore missing detail and may look blurry.
Large dimensions: very large canvases can use significant browser memory or exceed browser limits.

Frequently asked questions

Is Image Resizer free?

Yes. No sign-up is required.

Can I enter an exact width and height?

Yes. Both dimensions are entered in pixels.

Does it preserve the aspect ratio automatically?

No. Enter proportional dimensions yourself to avoid distortion.

Which format is downloaded?

The resized result is saved as PNG.

Does my image leave my device?

No. It is resized locally in the browser.