Dimensions

Resize Image

Resize to any dimension or ratio. Scale your images to perfection.

or drop a file, paste image

Max size: 20MB · JPG, PNG, WebP, HEIC

No image? Try one of these:

  • Free — no signup required
  • Lock aspect ratio or stretch
  • JPG, PNG, WebP & HEIC upload

How to Resize an Image in 3 Easy Steps

  1. 1

    Upload your image

    Drop a JPG, PNG, WebP, or HEIC file — or paste from clipboard. Up to 20MB.

  2. 2

    Set new dimensions

    Type width and height, use presets like 50% or 1080px wide, or pick social sizes.

  3. 3

    Download resized image

    Export as JPEG, PNG, or WebP at your target pixel size.

Why Correct Image Resizing Matters

Using oversized photos on websites is one of the leading causes of slow loading times and low SEO search rankings. When a browser downloads a 4000px wide image only to render it inside a 400px card, CPU cycles are wasted.

By pre-scaling your graphics to their exact layout dimensions before uploading, you optimize bandwidth, boost core web vitals, and provide a much smoother user experience for mobile users.

Standard Screen Resolutions & Preset sizes

Standard Resolution NamePixel Size (Width × Height)Aspect Ratio
4K Ultra HD3840 × 2160 px16:9
Full HD (1080p)1920 × 1080 px16:9
Standard Tablet Screen1024 × 768 px4:3
Typical Web Banner800 × 400 px2:1

Frequently Asked Questions

What is the difference between resizing and cropping?
Resizing scales the entire image (including all elements) up or down to new dimensions, changing the file size but preserving the full composition. Cropping cuts away the outer borders of the image, discarding pixels to focus on a specific region.
Will my image look blurry if I make it larger?
Resizing an image to smaller dimensions (downscaling) keeps it sharp because pixels are packed closer together. However, stretching an image to larger dimensions (upscaling) requires the browser to generate new pixels, which can make the photo look blurry or pixelated.
What is the "Lock Aspect Ratio" feature?
Locking the aspect ratio ensures that when you change the width, the height is automatically calculated proportionally (and vice versa). This prevents your image from looking stretched or squished.
Can I batch resize multiple images at once?
Yes! Once you upload your initial image and enter the workspace, you can batch resize and optimize multiple files in parallel to streamline your workflow.