Utilitiz›Image Resizer

Image Resizer

Resize images to exact pixel dimensions or by percentage. No upload needed.

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× px
%
Resized
↓ Download resized image

What is the Image Resizer?

A browser-based image resizer that lets you resize any image to exact pixel dimensions or by percentage. An aspect ratio lock keeps your image proportional so it does not stretch or distort. The resized image downloads in the same format as the original. No upload required — everything happens locally.

When would you use it?

Resizing for social media

Different platforms require different image dimensions — resize to 1200×630px for Open Graph images, 1080×1080px for Instagram, or 1500×500px for Twitter headers.

Reducing file size for email

Large photos taken on a smartphone can be several megabytes. Resize to 1200px wide before attaching to an email to keep the file size manageable.

Creating thumbnails

Resize images to a consistent small size for use as thumbnails in a blog, product listing or portfolio.

Matching a design specification

When a content management system or design tool requires an image at a specific pixel size, use this tool to resize precisely.

Frequently asked questions

The aspect ratio lock (🔗) keeps width and height proportional as you resize. If you change the width, the height adjusts automatically to match. This prevents your image from appearing stretched or squashed.
Yes, but upscaling reduces quality — the image will appear softer or pixelated. It is always better to start with a larger image and scale down.
The resized image is saved in the same format as the original. To change format, use the Image Converter tool.
Very large output dimensions may exceed browser memory limits. For most practical purposes up to about 8000×8000px works fine.
Yes. All resizing happens locally in your browser. Your images are never uploaded anywhere.

Aspect ratio lock

The 🔗 button keeps width and height proportional so your image doesn't stretch.

Output format

The resized image is saved in the same format as the original. Use the Image Converter to change format.

100% private

Your images never leave your device. All resizing happens locally in your browser.