Image Resizer — Resize Images Online Free in Seconds

Resize any JPG, PNG or WebP photo to the exact pixel size you need without installing software. Pick a preset such as a YouTube thumbnail, an Instagram square or a 2×2 inch form photo, or type your own width and height — everything happens in your browser, so your images stay private.

Upload & set the new size

Click to choose an image or drag and drop it here.

JPG, PNG or WebP · up to 20 MB

Resized result

Your resized image, its new dimensions and file size, plus a download button will appear here.

What is an online image resizer?

An image resizer changes the pixel dimensions of a picture — the width and height — rather than just its file size. Resizing is what you need when a website, form or social platform demands an exact size, such as 1280 × 720 for a YouTube thumbnail, 1080 × 1080 for an Instagram post, or 600 × 600 pixels for a 2×2 inch photo at 300 DPI.

How to resize an image online for free

  • Upload the photo by clicking the box or dragging the file in.
  • Choose a preset, or type the exact width and height you need.
  • Leave Keep the original aspect ratio ticked to avoid stretching the picture.
  • Press Resize image and download the new file.

Common sizes people resize to

  • YouTube thumbnail — 1280 × 720 pixels, under 2 MB.
  • Instagram and Facebook — 1080 × 1080 square, or 1080 × 1920 for Stories and Reels.
  • Web and email — 1200 pixels wide is plenty for most pages and newsletters.
  • Application and exam forms — a 2×2 inch photo measures roughly 600 × 600 pixels at print resolution.

Frequently asked questions

How do I resize an image without losing quality?
Always resize downwards from a larger original rather than stretching a small image upwards, keep the aspect ratio locked so the picture is not distorted, and export as JPG or WebP at 85–95% quality. That keeps the result sharp at the new size.
What size should a YouTube thumbnail be?
1280 × 720 pixels, with a 16:9 aspect ratio, and a file under 2 MB. Choose the "YouTube thumbnail" preset above and the tool fills in both numbers for you.
How do I resize a photo to 2×2 inches?
At the standard 300 DPI print resolution, a 2×2 inch photo is 600 × 600 pixels — use the "Form photo 2×2 inch" preset. If you are uploading to an online form, check whether it asks for pixel dimensions or a maximum file size first.
Are my images uploaded to a server?
No. The resizing happens entirely inside your browser using the HTML canvas API, so your photos never leave your device and are never stored anywhere.