Choose your tool

IMAGES TOOL

Image Resizer

Resize raster images while keeping aspect ratio or using exact dimensions.

◇ Browser only

Your text

Or load a UTF-8 text file

0 lines · 0 characters

ResultsReady when you are

Your results will appear here.

Copy or download your result below.

Your text stays on this device.

LESS BUSYWORK, MORE DONE

Three steps. That’s it.

A useful toolkit for text, data, images and calculations.

01
Add your input
Choose a tool, enter values or select a file.
02
Make it yours
Adjust the options and run the action.
03
Take the result
Copy the result or download its file.

Image size changer online

Prepare image dimensions for a website or document. Review aspect ratio and exact-size settings; increasing dimensions cannot recover missing detail.

How to use it

Choose a local file using the file selector. Review Width px, Height px, Keep aspect ratio. Select Process image and inspect the result before copying or downloading.

Options and example settings

Option	Choices / value	Example default
Width px	Enter a value	800
Height px	Enter a value	600
Keep aspect ratio	On / Off	On

Download the sample file

Worked examples

Prepare image dimensions for a website or document.

Local file workflow — Image Resizer

Settings: Width px: 800; Height px: 600; Keep aspect ratio: On

Input:

Use the downloadable sample file below.

This workflow was tested with the bundled sample and the listed default settings. Review the preview and downloaded result.

Output:

Dimensions: 800 × 533
Original bytes: 1,620
Output bytes: 10,689
Format: image/png

The example output has 4 lines. Compare its order, separators and whitespace with the input before copying the result.

Limitations and common mistakes

Review aspect ratio and exact-size settings; increasing dimensions cannot recover missing detail.
Keep the original file and verify the exported result before replacing it. Browser memory limits can affect large files.

Frequently asked questions

How can I change the size of an image online?

Choose a local file using the file selector. Review Width px, Height px, Keep aspect ratio. Select Process image and inspect the result before copying or downloading.

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.