Can I maintain the aspect ratio?

Yes, lock the aspect ratio so the image resizes proportionally — enter one dimension and the other calculates automatically.

What is the maximum output size?

You can resize images to any reasonable dimension. The tool works best with standard web and print sizes.

Image Resize

Resize images to exact dimensions while maintaining quality.

Drag & drop your file here, or click to browse

Images (PNG, JPG, WebP)

Maximum file size: 10MB

Next steps

Use this checklist to turn a new account into a repeatable workflow.

Account

Complete your first signed-in task

Process at least one file while logged in so your workspace history and metrics start filling in.

Account

Decide if you need Pro limits

Upgrade when you need higher quotas, API access, or a cleaner team workflow.

Pricing

Create an API key

Pro users can generate API keys to connect document processing to internal tools or customer flows.

Get an API key

What This Tool Does

Resize images to exact pixel dimensions while maintaining quality. Lock the aspect ratio to prevent distortion, or set custom width and height independently. Supports JPG, PNG, and WebP output formats.

How to Use It

Upload your image file.
Enter the target width and/or height in pixels.
Toggle aspect ratio lock if needed.
Download your resized image.

Why Use Our Image Resize?

Resize to exact pixel dimensions
Lock or unlock aspect ratio
Choose output quality level
Works with JPG, PNG, and WebP
Free with no file limits

Common Use Cases

Resizing photos for social media profiles
Preparing images for website thumbnails
Meeting exact dimension requirements for online forms
Reducing image dimensions for faster loading
Creating consistent sizes for product catalogs

From our experts

Expert Tip

Always resize down, never up. Upscaling low-resolution images creates blurry results regardless of algorithm. For responsive web images, use the srcset attribute with multiple pre-sized versions rather than relying on browser-side resizing.

Best Practice

E-commerce product images should be resized to exactly 1200×1200 pixels for platform compatibility. This matches the recommended size for Amazon, eBay, Shopify, and WooCommerce product galleries while minimising page load time.

Trust & Security

Resizing is performed using high-quality Lanczos resampling, which produces sharper results than bilinear or nearest-neighbour algorithms. All operations occur in your browser session, and no image data is persisted.

Web Image Optimization & Conversion Best Practices

Modern web standards demand optimized images for fast page loads and smooth user experiences. Resizing, compressing, and utilizing correct extensions directly impact bandwidth consumption and Google Core Web Vitals score.

Choosing Between Resizing and Compression

Image resizing modifies the actual pixel dimensions of an image, which is crucial for responsive layout grids. Image compression, on the other hand, reduces the file weight (bytes) by optimizing the internal pixel data without changing the width or height. Combining both—resizing the image to match the container dimensions first, then applying lossy or lossless compression—yields the most compact asset for fast web loading.

Format Selection & Background Isolation

Use JPG for photos without transparency, PNG for interface screenshots or graphics requiring clean transparency, and SVG for icons or logos that must scale infinitely. Converting raw graphics to WebP or SVG format reduces file footprint by up to 30%. For product listings and professional bio cards, isolating the subject and stripping busy backgrounds creates clean, focused layouts suitable for e-commerce and presentations.