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How to Resize an Image: Step-by-Step Guide

Resize images by exact dimensions or percentage, keep the aspect ratio, and download — all in your browser. No install, no upload.

Published August 28, 20264 min read
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How to resize an image in a few steps

Resizing an image takes under a minute.

Step 1: Open the tool

Go to Resize. It runs entirely in your browser — nothing to install, no account to create.

Step 2: Add your image

Drag and drop your file, or click to browse. JPG, PNG, WebP, GIF, and AVIF are supported (up to 50 MB), and everything runs locally.

Step 3: Choose how to resize

  • Custom dimensions — type the exact width and height you need
  • Percentage scale — enter a percentage, like 50% or 200%
  • Maintain aspect ratio — keep this on so the image isn't stretched; turn it off to set width and height freely

Step 4: Download the result

Preview the output to confirm its size, then download. Repeat as often as you like.

Tips

  • Keep aspect ratio on for most resizes to avoid distortion
  • Resize large images before uploading them somewhere that has a size cap
  • Keep the original file so you can resize again differently later

What you need to get started

A modern browser (Chrome, Firefox, Safari, or Edge). The tool accepts JPEG, PNG, WebP, GIF, and AVIF up to 50 MB and does everything on your device.

Verdict

Skip installs, accounts, and uploads: open Resize and set your image to the exact size in seconds.

Free tools to do it now

Frequently asked questions

How long does resizing take?

Most resizes finish in seconds because everything runs locally in your browser.

Can I resize by percentage?

Yes — choose a percentage scale or enter exact custom dimensions.

What if my image becomes stretched?

Keep maintain aspect ratio enabled to preserve the original proportions.

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