How do I resize an image?

Upload your image, enter the desired width and height (or percentage), and click Resize. The tool uses the Canvas API to create a new image at the specified dimensions.

Will resizing affect image quality?

Enlarging images may result in some quality loss. Reducing size generally maintains good quality. Our tool uses bicubic interpolation for best results.

Can I maintain the aspect ratio?

Yes! The 'Lock Aspect Ratio' option is enabled by default. When you change the width, the height automatically adjusts proportionally and vice versa.

What formats are supported?

All common image formats including JPEG, PNG, and WebP. The output format matches the input format.

Is there a size limit?

There's no hard limit, but very large images may be slower to process since everything runs in your browser.

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Image Resize

Resize images to exact dimensions or by percentage

Your files never leave your browser

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Drop your image here or click to browse

Supports JPEG, PNG, WebP and more

What is Image Resize?

Image Resize lets you change the dimensions of any image to exact pixel values or by percentage. It supports aspect ratio locking to prevent distortion, and all processing runs in your browser using the Canvas API -- no uploads to external servers.

Key Features

Exact Dimensions or Percentage

Resize by entering specific width and height in pixels, or use percentage mode to scale images proportionally.

Aspect Ratio Lock

Lock the aspect ratio so changing one dimension automatically adjusts the other, preventing image stretching or distortion.

In-Browser Processing

Images are resized locally using the Canvas API with bicubic interpolation for high-quality results. Nothing is uploaded.

Common Use Cases

Resize photos to meet specific dimension requirements for social media profiles, banners, or cover images. Scale down high-resolution images for web use to reduce page load times without manual editing. Prepare images at exact pixel dimensions required by app stores, ad platforms, or print services.

How It Works

Upload Image

Drag and drop or click to select an image

Set Dimensions

Enter width, height, or percentage

Download

Download the resized image

Frequently Asked Questions

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Last updated: Feb 27, 2026